./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.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 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:30:24,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:30:24,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:30:24,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:30:24,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:30:24,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:30:24,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:30:24,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:30:24,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:30:24,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:30:24,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:30:24,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:30:24,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:30:24,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:30:24,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:30:24,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:30:24,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:30:24,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:30:24,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:30:24,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:30:24,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:30:24,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:30:24,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:30:24,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:30:24,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:30:24,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:30:24,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:30:24,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:30:24,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:30:24,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:30:24,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:30:24,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:30:24,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:30:24,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:30:24,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:30:24,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:30:24,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:30:24,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:30:24,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:30:24,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:30:24,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:30:24,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-16 04:30:24,700 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:30:24,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:30:24,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:30:24,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:30:24,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:30:24,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:30:24,702 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:30:24,702 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-16 04:30:24,703 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-16 04:30:24,703 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-16 04:30:24,703 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-16 04:30:24,703 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-16 04:30:24,704 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-16 04:30:24,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:30:24,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:30:24,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:30:24,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:30:24,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-16 04:30:24,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-16 04:30:24,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-16 04:30:24,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:30:24,705 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-16 04:30:24,705 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:30:24,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-16 04:30:24,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:30:24,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:30:24,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:30:24,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:30:24,707 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-16 04:30:24,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2023-02-16 04:30:24,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:30:24,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:30:24,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:30:24,914 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:30:24,915 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:30:24,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-02-16 04:30:26,025 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:30:26,144 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:30:26,144 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-02-16 04:30:26,148 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031d77b74/b122e6ae395d422abdecf4fb090ccaef/FLAG71dac3c64 [2023-02-16 04:30:26,158 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031d77b74/b122e6ae395d422abdecf4fb090ccaef [2023-02-16 04:30:26,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:30:26,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:30:26,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:30:26,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:30:26,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:30:26,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2fab30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26, skipping insertion in model container [2023-02-16 04:30:26,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:30:26,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:30:26,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:30:26,262 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:30:26,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:30:26,278 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:30:26,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26 WrapperNode [2023-02-16 04:30:26,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:30:26,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:30:26,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:30:26,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:30:26,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,296 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-16 04:30:26,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:30:26,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:30:26,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:30:26,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:30:26,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,306 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:30:26,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:30:26,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:30:26,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:30:26,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (1/1) ... [2023-02-16 04:30:26,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:26,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:26,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:26,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-16 04:30:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:30:26,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:30:26,395 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:30:26,397 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:30:26,457 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:30:26,460 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:30:26,461 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-16 04:30:26,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:30:26 BoogieIcfgContainer [2023-02-16 04:30:26,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:30:26,463 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-16 04:30:26,463 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-16 04:30:26,465 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-16 04:30:26,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:30:26,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.02 04:30:26" (1/3) ... [2023-02-16 04:30:26,466 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@700489d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:30:26, skipping insertion in model container [2023-02-16 04:30:26,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:30:26,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:26" (2/3) ... [2023-02-16 04:30:26,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@700489d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:30:26, skipping insertion in model container [2023-02-16 04:30:26,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:30:26,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:30:26" (3/3) ... [2023-02-16 04:30:26,468 INFO L332 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2023-02-16 04:30:26,508 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-16 04:30:26,513 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-16 04:30:26,528 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-16 04:30:26,529 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-16 04:30:26,529 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-16 04:30:26,529 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-16 04:30:26,529 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-16 04:30:26,529 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-16 04:30:26,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:26,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-16 04:30:26,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:26,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:26,547 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:30:26,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:26,548 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-16 04:30:26,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:26,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-16 04:30:26,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:26,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:26,550 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:30:26,550 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:26,555 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L25-2true [2023-02-16 04:30:26,557 INFO L750 eck$LassoCheckResult]: Loop: 3#L25-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 7#L25true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 9#L33true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 11#L33-2true main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L25-2true [2023-02-16 04:30:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-16 04:30:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:26,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370988573] [2023-02-16 04:30:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:26,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:26,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:26,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:26,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161, now seen corresponding path program 1 times [2023-02-16 04:30:26,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:26,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637430647] [2023-02-16 04:30:26,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:26,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:26,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:26,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:26,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:26,696 INFO L85 PathProgramCache]: Analyzing trace with hash 889701363, now seen corresponding path program 1 times [2023-02-16 04:30:26,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:26,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240639089] [2023-02-16 04:30:26,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:26,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:26,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:26,802 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:26,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:26,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:26,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:26,803 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:26,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:26,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:26,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:26,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2023-02-16 04:30:26,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:26,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:26,815 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:26,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:26,833 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:26,836 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:26,941 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:26,941 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:26,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:26,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:26,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:26,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-16 04:30:26,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:26,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:26,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:26,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:26,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:26,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:26,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-16 04:30:26,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:26,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:27,019 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:27,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:27,037 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:27,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:27,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:27,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:27,038 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:27,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:27,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:27,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2023-02-16 04:30:27,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:27,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:27,040 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,056 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,060 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:27,126 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:27,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:27,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:27,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-16 04:30:27,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:27,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:27,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:27,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:27,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:27,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:27,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:27,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:27,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:27,180 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:30:27,180 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:27,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:27,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:27,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-16 04:30:27,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:27,274 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:27,275 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:27,275 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-16 04:30:27,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-16 04:30:27,286 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:27,329 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:27,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:27,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:27,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:27,445 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:27,447 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:27,490 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 51 transitions. Complement of second has 8 states. [2023-02-16 04:30:27,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:27,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-02-16 04:30:27,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-16 04:30:27,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:27,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-16 04:30:27,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:27,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-16 04:30:27,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:27,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2023-02-16 04:30:27,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-16 04:30:27,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 18 states and 25 transitions. [2023-02-16 04:30:27,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-16 04:30:27,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-16 04:30:27,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2023-02-16 04:30:27,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:27,506 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2023-02-16 04:30:27,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2023-02-16 04:30:27,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-02-16 04:30:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:27,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2023-02-16 04:30:27,523 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-16 04:30:27,523 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-16 04:30:27,523 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-16 04:30:27,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2023-02-16 04:30:27,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-16 04:30:27,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:27,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:27,525 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-16 04:30:27,525 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:27,525 INFO L748 eck$LassoCheckResult]: Stem: 104#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 109#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 97#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 102#L26 [2023-02-16 04:30:27,526 INFO L750 eck$LassoCheckResult]: Loop: 102#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 100#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 101#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 110#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 102#L26 [2023-02-16 04:30:27,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:27,527 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-16 04:30:27,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:27,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041451378] [2023-02-16 04:30:27,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:27,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:27,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:27,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:27,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:27,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 1 times [2023-02-16 04:30:27,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:27,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146474991] [2023-02-16 04:30:27,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:27,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:27,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:27,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash 295929837, now seen corresponding path program 1 times [2023-02-16 04:30:27,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:27,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717394607] [2023-02-16 04:30:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:27,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:27,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:27,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:27,608 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:27,608 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:27,608 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:27,608 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:27,608 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:27,608 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,608 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:27,608 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:27,608 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2023-02-16 04:30:27,608 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:27,608 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:27,611 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,669 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:27,670 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:27,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:27,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:27,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-16 04:30:27,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:27,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:27,725 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:27,726 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:27,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:27,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:27,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:27,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-16 04:30:27,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:27,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:27,758 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:27,758 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:27,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:27,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:27,781 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:27,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-16 04:30:27,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:27,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:27,809 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:27,810 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=4} Honda state: {ULTIMATE.start_main_#t~nondet2#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:27,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:27,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:27,817 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:27,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-16 04:30:27,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:27,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:27,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:27,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:27,852 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:27,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-16 04:30:27,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:27,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:27,955 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:27,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-16 04:30:27,959 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:27,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:27,959 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:27,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:27,959 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:27,959 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:27,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:27,959 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:27,959 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2023-02-16 04:30:27,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:27,960 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:27,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,967 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,970 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:27,972 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,021 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:28,021 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:28,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,039 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-16 04:30:28,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:28,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:28,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:28,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:28,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:28,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:28,091 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:28,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:28,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-16 04:30:28,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,117 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-16 04:30:28,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:28,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:28,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:28,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:28,128 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:28,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:28,129 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:28,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:28,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:28,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,141 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-16 04:30:28,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:28,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:28,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:28,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:28,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:28,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:28,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:28,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:28,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,202 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:28,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:28,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:28,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:28,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:28,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:28,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-16 04:30:28,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:28,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:28,232 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:28,245 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:30:28,245 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:28,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,263 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-16 04:30:28,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:28,265 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:28,265 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:28,265 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-16 04:30:28,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,271 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:28,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:28,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:28,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:28,291 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:30:28,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:28,318 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:28,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:28,337 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 37 states and 55 transitions. Complement of second has 7 states. [2023-02-16 04:30:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-16 04:30:28,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-16 04:30:28,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:28,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2023-02-16 04:30:28,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:28,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2023-02-16 04:30:28,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:28,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 55 transitions. [2023-02-16 04:30:28,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-02-16 04:30:28,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 46 transitions. [2023-02-16 04:30:28,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-02-16 04:30:28,348 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-02-16 04:30:28,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 46 transitions. [2023-02-16 04:30:28,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:28,349 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 46 transitions. [2023-02-16 04:30:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 46 transitions. [2023-02-16 04:30:28,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2023-02-16 04:30:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2023-02-16 04:30:28,357 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 39 transitions. [2023-02-16 04:30:28,357 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2023-02-16 04:30:28,357 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-16 04:30:28,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2023-02-16 04:30:28,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-02-16 04:30:28,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:28,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:28,360 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-16 04:30:28,360 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:28,360 INFO L748 eck$LassoCheckResult]: Stem: 206#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 207#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 215#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 217#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 218#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 211#L26-2 [2023-02-16 04:30:28,360 INFO L750 eck$LassoCheckResult]: Loop: 211#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 222#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 202#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 204#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 211#L26-2 [2023-02-16 04:30:28,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2023-02-16 04:30:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:28,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506328478] [2023-02-16 04:30:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:28,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1560156, now seen corresponding path program 1 times [2023-02-16 04:30:28,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:28,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289962799] [2023-02-16 04:30:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:28,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:28,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,379 INFO L85 PathProgramCache]: Analyzing trace with hash 585737416, now seen corresponding path program 1 times [2023-02-16 04:30:28,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:28,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626980948] [2023-02-16 04:30:28,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:28,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:28,421 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:28,421 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:28,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:28,422 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:28,422 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:28,422 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:28,422 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:28,422 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2023-02-16 04:30:28,422 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:28,422 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:28,423 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,425 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,431 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,433 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,468 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:28,468 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:28,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,469 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-16 04:30:28,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:28,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:28,494 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:28,494 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:28,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,498 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-16 04:30:28,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:28,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:28,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,529 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-16 04:30:28,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:28,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:28,555 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:28,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,559 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:28,559 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:28,559 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:28,559 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:28,559 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:28,559 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:28,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:28,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2023-02-16 04:30:28,559 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:28,559 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:28,560 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,568 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,578 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,617 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:28,617 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:28,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,639 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-16 04:30:28,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:28,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:28,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:28,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:28,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:28,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:28,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:28,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:28,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:28,667 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:28,667 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:28,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,670 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-16 04:30:28,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:28,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:28,672 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:28,672 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-16 04:30:28,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,691 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:28,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:28,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:28,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:28,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:28,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:28,730 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-16 04:30:28,730 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:28,754 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 90 transitions. Complement of second has 7 states. [2023-02-16 04:30:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:28,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-02-16 04:30:28,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-16 04:30:28,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:28,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-16 04:30:28,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:28,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 8 letters. [2023-02-16 04:30:28,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:28,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 90 transitions. [2023-02-16 04:30:28,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-16 04:30:28,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 76 transitions. [2023-02-16 04:30:28,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2023-02-16 04:30:28,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2023-02-16 04:30:28,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 76 transitions. [2023-02-16 04:30:28,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:28,763 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 76 transitions. [2023-02-16 04:30:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 76 transitions. [2023-02-16 04:30:28,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2023-02-16 04:30:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 46 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:28,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2023-02-16 04:30:28,769 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-02-16 04:30:28,769 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-02-16 04:30:28,769 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-16 04:30:28,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 69 transitions. [2023-02-16 04:30:28,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-16 04:30:28,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:28,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:28,771 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:28,771 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:28,771 INFO L748 eck$LassoCheckResult]: Stem: 344#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 357#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 341#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 342#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 364#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 363#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 359#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 360#L33 [2023-02-16 04:30:28,771 INFO L750 eck$LassoCheckResult]: Loop: 360#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 354#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 339#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 379#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 360#L33 [2023-02-16 04:30:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 1 times [2023-02-16 04:30:28,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:28,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075231483] [2023-02-16 04:30:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 2 times [2023-02-16 04:30:28,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:28,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593262705] [2023-02-16 04:30:28,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:28,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:28,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:28,802 INFO L85 PathProgramCache]: Analyzing trace with hash 69132454, now seen corresponding path program 1 times [2023-02-16 04:30:28,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:28,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837993823] [2023-02-16 04:30:28,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:28,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:28,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:28,839 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:28,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:28,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:28,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:28,840 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:28,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:28,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:28,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2023-02-16 04:30:28,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:28,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:28,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:28,898 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:28,899 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:28,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,917 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-16 04:30:28,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:28,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:28,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:28,941 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:28,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,957 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:28,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:28,969 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:28,969 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:28,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-16 04:30:28,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:28,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:28,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:28,977 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:28,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-16 04:30:28,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:28,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:29,002 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:29,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:29,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,006 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-16 04:30:29,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:29,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:29,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,030 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-16 04:30:29,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-16 04:30:29,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:29,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:29,143 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:29,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,148 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:29,149 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:29,149 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:29,149 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:29,149 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:29,149 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,149 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:29,149 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:29,149 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2023-02-16 04:30:29,149 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:29,149 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:29,150 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,161 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,199 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:29,199 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:29,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,200 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-16 04:30:29,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:29,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:29,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:29,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:29,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:29,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:29,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:29,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:29,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,232 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-16 04:30:29,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:29,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:29,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:29,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:29,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:29,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:29,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:29,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:29,287 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 [2023-02-16 04:30:29,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,288 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-16 04:30:29,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:29,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:29,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:29,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:29,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:29,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:29,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:29,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:29,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:29,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:29,319 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:29,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,320 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-16 04:30:29,323 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:29,323 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:29,324 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:29,324 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-16 04:30:29,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,326 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:29,381 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:29,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,401 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 110 states and 163 transitions. Complement of second has 7 states. [2023-02-16 04:30:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-02-16 04:30:29,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2023-02-16 04:30:29,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-16 04:30:29,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2023-02-16 04:30:29,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 163 transitions. [2023-02-16 04:30:29,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-16 04:30:29,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 89 states and 132 transitions. [2023-02-16 04:30:29,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-02-16 04:30:29,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2023-02-16 04:30:29,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 132 transitions. [2023-02-16 04:30:29,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:29,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 132 transitions. [2023-02-16 04:30:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 132 transitions. [2023-02-16 04:30:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2023-02-16 04:30:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 79 states have (on average 1.481012658227848) internal successors, (117), 78 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2023-02-16 04:30:29,408 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 117 transitions. [2023-02-16 04:30:29,408 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 117 transitions. [2023-02-16 04:30:29,408 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-16 04:30:29,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 117 transitions. [2023-02-16 04:30:29,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-16 04:30:29,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:29,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:29,409 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:29,409 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:29,409 INFO L748 eck$LassoCheckResult]: Stem: 561#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 562#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 572#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 608#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 607#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 605#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 604#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 601#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 602#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 580#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 579#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 575#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 576#L33 [2023-02-16 04:30:29,409 INFO L750 eck$LassoCheckResult]: Loop: 576#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 570#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 556#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 629#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 576#L33 [2023-02-16 04:30:29,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 1 times [2023-02-16 04:30:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:29,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109027328] [2023-02-16 04:30:29,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:29,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:29,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 3 times [2023-02-16 04:30:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:29,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100111927] [2023-02-16 04:30:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:29,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,419 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:29,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1555787668, now seen corresponding path program 1 times [2023-02-16 04:30:29,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:29,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612616120] [2023-02-16 04:30:29,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:29,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:29,465 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:29,465 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:29,465 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:29,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:29,465 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:29,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:29,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:29,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2023-02-16 04:30:29,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:29,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:29,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,475 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,477 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:29,511 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:29,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,530 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-16 04:30:29,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:29,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:29,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,543 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-16 04:30:29,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:29,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:29,617 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:29,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-02-16 04:30:29,620 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:29,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:29,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:29,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:29,620 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:29,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:29,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:29,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2023-02-16 04:30:29,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:29,620 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:29,621 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,631 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,634 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,636 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:29,683 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:29,683 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:29,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,697 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-16 04:30:29,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:29,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:29,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:29,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:29,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:29,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:29,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:29,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:29,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:29,725 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:30:29,725 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:29,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:29,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:29,737 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:29,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-16 04:30:29,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:29,741 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:29,741 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:29,741 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-16 04:30:29,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:29,745 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:29,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:29,801 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:29,801 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,818 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 110 states and 163 transitions. Complement of second has 7 states. [2023-02-16 04:30:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-02-16 04:30:29,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-16 04:30:29,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,819 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:29,866 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:29,866 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,890 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 158 transitions. Complement of second has 7 states. [2023-02-16 04:30:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:29,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-16 04:30:29,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-16 04:30:29,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,891 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:29,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:29,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:29,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:29,937 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:29,937 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 124 states and 189 transitions. Complement of second has 8 states. [2023-02-16 04:30:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-16 04:30:29,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-16 04:30:29,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-16 04:30:29,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-16 04:30:29,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:29,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 189 transitions. [2023-02-16 04:30:29,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2023-02-16 04:30:29,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 95 states and 142 transitions. [2023-02-16 04:30:29,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2023-02-16 04:30:29,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-02-16 04:30:29,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 142 transitions. [2023-02-16 04:30:29,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:29,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 142 transitions. [2023-02-16 04:30:29,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 142 transitions. [2023-02-16 04:30:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 55. [2023-02-16 04:30:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.509090909090909) internal successors, (83), 54 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 83 transitions. [2023-02-16 04:30:29,960 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-02-16 04:30:29,960 INFO L428 stractBuchiCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-02-16 04:30:29,960 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-16 04:30:29,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 83 transitions. [2023-02-16 04:30:29,960 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2023-02-16 04:30:29,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:29,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:29,960 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:29,960 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:29,960 INFO L748 eck$LassoCheckResult]: Stem: 1171#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1172#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1182#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1167#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1168#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1188#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1186#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1183#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1184#L33 [2023-02-16 04:30:29,960 INFO L750 eck$LassoCheckResult]: Loop: 1184#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 1180#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1181#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1198#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1205#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1206#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1209#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1208#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1184#L33 [2023-02-16 04:30:29,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 2 times [2023-02-16 04:30:29,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:29,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595934397] [2023-02-16 04:30:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:29,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 1 times [2023-02-16 04:30:29,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:29,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713113480] [2023-02-16 04:30:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:29,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:29,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:29,972 INFO L85 PathProgramCache]: Analyzing trace with hash 576410797, now seen corresponding path program 2 times [2023-02-16 04:30:29,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:29,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631929315] [2023-02-16 04:30:29,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:29,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:30,023 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:30,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:30,023 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:30,023 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:30,023 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:30,023 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:30,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:30,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2023-02-16 04:30:30,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:30,023 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:30,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,026 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,027 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,029 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,077 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:30,077 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:30,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,078 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-16 04:30:30,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:30,101 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:30,101 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:30,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,107 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-16 04:30:30,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:30,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:30,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:30,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:30,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,134 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-16 04:30:30,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:30,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:30,154 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:30,154 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:30,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,161 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-16 04:30:30,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:30,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:30,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:30,175 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=4} Honda state: {ULTIMATE.start_main_#t~nondet2#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:30,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,178 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-16 04:30:30,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:30,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:30,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,197 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-16 04:30:30,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:30,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:30,294 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:30,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,300 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:30,300 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:30,300 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:30,300 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:30,300 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:30,300 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,300 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:30,300 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:30,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2023-02-16 04:30:30,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:30,300 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:30,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,310 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:30,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:30,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,382 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-16 04:30:30,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:30,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:30,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:30,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:30,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:30,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:30,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:30,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:30,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,398 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-16 04:30:30,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:30,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:30,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:30,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:30,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:30,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:30,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:30,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:30,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:30,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,472 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-16 04:30:30,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:30,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:30,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:30,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:30,482 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:30,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:30,483 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:30,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:30,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:30,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,490 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-02-16 04:30:30,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:30,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:30,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:30,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:30,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:30,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:30,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:30,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:30,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,506 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-02-16 04:30:30,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:30,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:30,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:30,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:30,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:30,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:30,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:30,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:30,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:30,522 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:30,522 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:30,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,525 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-02-16 04:30:30,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:30,527 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:30,527 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:30,527 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-16 04:30:30,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,531 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:30,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:30,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:30,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:30:30,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:30,609 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-16 04:30:30,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 83 transitions. cyclomatic complexity: 35 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:30,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,699 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 83 transitions. cyclomatic complexity: 35. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 241 states and 359 transitions. Complement of second has 13 states. [2023-02-16 04:30:30,699 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 [2023-02-16 04:30:30,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2023-02-16 04:30:30,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2023-02-16 04:30:30,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:30,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2023-02-16 04:30:30,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:30,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2023-02-16 04:30:30,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:30,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 359 transitions. [2023-02-16 04:30:30,705 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2023-02-16 04:30:30,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 203 states and 306 transitions. [2023-02-16 04:30:30,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2023-02-16 04:30:30,708 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-02-16 04:30:30,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 306 transitions. [2023-02-16 04:30:30,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:30,708 INFO L218 hiAutomatonCegarLoop]: Abstraction has 203 states and 306 transitions. [2023-02-16 04:30:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 306 transitions. [2023-02-16 04:30:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 184. [2023-02-16 04:30:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 184 states have (on average 1.5108695652173914) internal successors, (278), 183 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 278 transitions. [2023-02-16 04:30:30,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 184 states and 278 transitions. [2023-02-16 04:30:30,729 INFO L428 stractBuchiCegarLoop]: Abstraction has 184 states and 278 transitions. [2023-02-16 04:30:30,730 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-16 04:30:30,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 278 transitions. [2023-02-16 04:30:30,730 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2023-02-16 04:30:30,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:30,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:30,732 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:30,732 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:30,732 INFO L748 eck$LassoCheckResult]: Stem: 1551#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1552#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1561#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1547#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1548#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1571#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1635#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1630#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1628#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 1629#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1642#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1637#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1626#L26 [2023-02-16 04:30:30,732 INFO L750 eck$LassoCheckResult]: Loop: 1626#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1627#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1645#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1646#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1626#L26 [2023-02-16 04:30:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:30,733 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 2 times [2023-02-16 04:30:30,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:30,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322423189] [2023-02-16 04:30:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:30,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:30,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:30,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:30,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 2 times [2023-02-16 04:30:30,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:30,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862956999] [2023-02-16 04:30:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:30,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:30,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:30,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:30,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:30,755 INFO L85 PathProgramCache]: Analyzing trace with hash -232935838, now seen corresponding path program 3 times [2023-02-16 04:30:30,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:30,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907392004] [2023-02-16 04:30:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:30,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:30,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:30,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:30,792 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:30,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:30,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:30,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:30,792 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:30,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,792 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:30,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:30,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2023-02-16 04:30:30,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:30,793 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:30,793 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,800 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,802 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,804 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,851 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:30,851 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:30,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,853 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-02-16 04:30:30,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:30,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:30,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-02-16 04:30:30,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:30,871 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:30,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-02-16 04:30:30,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:30,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:30,960 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:30,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:30,963 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:30,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:30,964 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:30,964 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:30,964 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:30,964 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:30,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:30,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:30,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2023-02-16 04:30:30,964 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:30,964 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:30,964 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,987 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:30,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,034 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:31,034 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:31,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,041 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-02-16 04:30:31,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:31,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:31,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:31,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:31,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:31,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:31,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:31,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:31,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:31,070 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:31,070 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:31,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,072 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-02-16 04:30:31,076 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:31,076 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:31,076 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:31,076 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-16 04:30:31,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-02-16 04:30:31,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:31,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,111 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:31,156 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:31,156 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:31,186 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 326 states and 474 transitions. Complement of second has 7 states. [2023-02-16 04:30:31,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-16 04:30:31,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-16 04:30:31,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:31,187 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:31,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,218 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:31,240 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:31,240 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:31,280 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 346 states and 499 transitions. Complement of second has 9 states. [2023-02-16 04:30:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-02-16 04:30:31,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-16 04:30:31,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:31,282 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,316 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:31,344 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:31,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:31,370 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 424 states and 646 transitions. Complement of second has 9 states. [2023-02-16 04:30:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:31,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2023-02-16 04:30:31,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-16 04:30:31,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:31,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-16 04:30:31,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:31,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-16 04:30:31,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:31,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 424 states and 646 transitions. [2023-02-16 04:30:31,376 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-02-16 04:30:31,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 424 states to 284 states and 418 transitions. [2023-02-16 04:30:31,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2023-02-16 04:30:31,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2023-02-16 04:30:31,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 418 transitions. [2023-02-16 04:30:31,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:31,378 INFO L218 hiAutomatonCegarLoop]: Abstraction has 284 states and 418 transitions. [2023-02-16 04:30:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 418 transitions. [2023-02-16 04:30:31,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 226. [2023-02-16 04:30:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 226 states have (on average 1.5176991150442478) internal successors, (343), 225 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 343 transitions. [2023-02-16 04:30:31,387 INFO L240 hiAutomatonCegarLoop]: Abstraction has 226 states and 343 transitions. [2023-02-16 04:30:31,387 INFO L428 stractBuchiCegarLoop]: Abstraction has 226 states and 343 transitions. [2023-02-16 04:30:31,387 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-16 04:30:31,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 343 transitions. [2023-02-16 04:30:31,388 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 30 [2023-02-16 04:30:31,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:31,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:31,389 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:31,389 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:31,389 INFO L748 eck$LassoCheckResult]: Stem: 3021#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3022#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3031#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3017#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3018#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 3124#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3123#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3117#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3116#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 3084#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3083#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3080#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3082#L26 [2023-02-16 04:30:31,389 INFO L750 eck$LassoCheckResult]: Loop: 3082#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 3101#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3100#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3098#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3081#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 3084#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3083#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3080#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3082#L26 [2023-02-16 04:30:31,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:31,390 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 4 times [2023-02-16 04:30:31,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:31,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999388018] [2023-02-16 04:30:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:31,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:31,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:31,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:31,404 INFO L85 PathProgramCache]: Analyzing trace with hash -449776328, now seen corresponding path program 2 times [2023-02-16 04:30:31,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:31,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515028832] [2023-02-16 04:30:31,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:31,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:31,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:31,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:31,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 898024594, now seen corresponding path program 2 times [2023-02-16 04:30:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:31,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51857986] [2023-02-16 04:30:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:31,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:31,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:31,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:31,481 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:31,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:31,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:31,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:31,481 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:31,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:31,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:31,482 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2023-02-16 04:30:31,482 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:31,482 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:31,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,495 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,541 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:31,541 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:31,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,544 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-02-16 04:30:31,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:31,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:31,566 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:31,566 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:31,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:31,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,570 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-02-16 04:30:31,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:31,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:31,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:31,588 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:31,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-02-16 04:30:31,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,592 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-02-16 04:30:31,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:31,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:31,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:31,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,611 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-02-16 04:30:31,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:31,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:31,712 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:31,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:31,717 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:31,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:31,717 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:31,717 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:31,717 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:31,717 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:31,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:31,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2023-02-16 04:30:31,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:31,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:31,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,732 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,735 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:31,779 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:31,779 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:31,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,780 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-02-16 04:30:31,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:31,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:31,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:31,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:31,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:31,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:31,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:31,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:31,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-02-16 04:30:31,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,882 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-02-16 04:30:31,885 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:31,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:31,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:31,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:31,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:31,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:31,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:31,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:31,908 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:31,915 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:31,915 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:31,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:31,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:31,916 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:31,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-02-16 04:30:31,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:31,919 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:31,919 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:31,919 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-16 04:30:31,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-02-16 04:30:31,922 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:31,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:30:31,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:32,002 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-16 04:30:32,002 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 343 transitions. cyclomatic complexity: 140 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:32,052 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 343 transitions. cyclomatic complexity: 140. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 582 states and 900 transitions. Complement of second has 12 states. [2023-02-16 04:30:32,056 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 [2023-02-16 04:30:32,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions. [2023-02-16 04:30:32,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-16 04:30:32,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:32,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 20 letters. Loop has 8 letters. [2023-02-16 04:30:32,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:32,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 16 letters. [2023-02-16 04:30:32,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:32,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 900 transitions. [2023-02-16 04:30:32,060 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-02-16 04:30:32,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 544 states and 832 transitions. [2023-02-16 04:30:32,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-02-16 04:30:32,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2023-02-16 04:30:32,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 544 states and 832 transitions. [2023-02-16 04:30:32,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:32,062 INFO L218 hiAutomatonCegarLoop]: Abstraction has 544 states and 832 transitions. [2023-02-16 04:30:32,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states and 832 transitions. [2023-02-16 04:30:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 405. [2023-02-16 04:30:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 405 states have (on average 1.5901234567901235) internal successors, (644), 404 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:32,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 644 transitions. [2023-02-16 04:30:32,078 INFO L240 hiAutomatonCegarLoop]: Abstraction has 405 states and 644 transitions. [2023-02-16 04:30:32,078 INFO L428 stractBuchiCegarLoop]: Abstraction has 405 states and 644 transitions. [2023-02-16 04:30:32,078 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-02-16 04:30:32,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 405 states and 644 transitions. [2023-02-16 04:30:32,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2023-02-16 04:30:32,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:32,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:32,080 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:32,080 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:32,081 INFO L748 eck$LassoCheckResult]: Stem: 3925#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3926#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3935#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3981#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4005#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 3996#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3964#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3940#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3927#L33 [2023-02-16 04:30:32,081 INFO L750 eck$LassoCheckResult]: Loop: 3927#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 3928#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4167#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4168#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4169#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 4143#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4164#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4163#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3927#L33 [2023-02-16 04:30:32,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 1 times [2023-02-16 04:30:32,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:32,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36439173] [2023-02-16 04:30:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:32,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash 930337844, now seen corresponding path program 1 times [2023-02-16 04:30:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:32,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792450112] [2023-02-16 04:30:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash 25289191, now seen corresponding path program 1 times [2023-02-16 04:30:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:32,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946202637] [2023-02-16 04:30:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:32,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:32,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2023-02-16 04:30:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:32,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:32,198 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:32,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:32,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:32,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:32,198 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:32,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:32,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:32,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2023-02-16 04:30:32,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:32,198 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:32,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,211 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,213 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,252 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:32,253 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:32,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,254 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-02-16 04:30:32,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:32,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:32,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:32,268 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:32,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,272 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-02-16 04:30:32,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:32,281 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:32,281 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:32,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2023-02-16 04:30:32,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,284 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-02-16 04:30:32,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:32,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:32,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2023-02-16 04:30:32,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,297 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) [2023-02-16 04:30:32,297 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 [2023-02-16 04:30:32,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:32,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:32,378 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:32,382 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 [2023-02-16 04:30:32,382 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:32,383 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:32,383 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:32,383 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:32,383 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:32,383 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,383 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:32,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:32,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2023-02-16 04:30:32,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:32,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:32,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,387 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,435 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:32,435 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:32,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,438 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-02-16 04:30:32,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:32,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:32,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:32,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:32,447 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:32,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:32,447 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:32,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:32,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:32,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,453 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-02-16 04:30:32,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:32,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:32,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:32,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:32,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:32,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:32,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:32,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:32,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,470 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-02-16 04:30:32,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:32,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:32,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:32,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:32,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:32,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:32,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:32,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:32,484 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:32,485 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:30:32,485 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:32,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,486 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-02-16 04:30:32,489 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:32,490 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:32,490 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:32,490 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-16 04:30:32,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,492 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:32,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:32,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:32,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:32,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:30:32,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:32,548 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-16 04:30:32,548 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 405 states and 644 transitions. cyclomatic complexity: 278 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:32,604 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 405 states and 644 transitions. cyclomatic complexity: 278. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1086 states and 1724 transitions. Complement of second has 12 states. [2023-02-16 04:30:32,604 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 [2023-02-16 04:30:32,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2023-02-16 04:30:32,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2023-02-16 04:30:32,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:32,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2023-02-16 04:30:32,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:32,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2023-02-16 04:30:32,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:32,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1086 states and 1724 transitions. [2023-02-16 04:30:32,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-16 04:30:32,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1086 states to 677 states and 1020 transitions. [2023-02-16 04:30:32,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-02-16 04:30:32,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-02-16 04:30:32,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 677 states and 1020 transitions. [2023-02-16 04:30:32,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:32,613 INFO L218 hiAutomatonCegarLoop]: Abstraction has 677 states and 1020 transitions. [2023-02-16 04:30:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states and 1020 transitions. [2023-02-16 04:30:32,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 463. [2023-02-16 04:30:32,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 463 states have (on average 1.57451403887689) internal successors, (729), 462 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:32,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 729 transitions. [2023-02-16 04:30:32,619 INFO L240 hiAutomatonCegarLoop]: Abstraction has 463 states and 729 transitions. [2023-02-16 04:30:32,619 INFO L428 stractBuchiCegarLoop]: Abstraction has 463 states and 729 transitions. [2023-02-16 04:30:32,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-02-16 04:30:32,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 463 states and 729 transitions. [2023-02-16 04:30:32,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-16 04:30:32,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:32,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:32,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:32,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:30:32,621 INFO L748 eck$LassoCheckResult]: Stem: 5498#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 5499#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5510#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5524#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5516#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5513#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5512#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5511#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 5500#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 5501#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 5695#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5691#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5685#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 5682#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5675#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5676#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5495#L26 [2023-02-16 04:30:32,621 INFO L750 eck$LassoCheckResult]: Loop: 5495#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5531#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5526#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5494#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5495#L26 [2023-02-16 04:30:32,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash 25229600, now seen corresponding path program 1 times [2023-02-16 04:30:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900388816] [2023-02-16 04:30:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:32,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1510086, now seen corresponding path program 2 times [2023-02-16 04:30:32,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:32,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055557354] [2023-02-16 04:30:32,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:32,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:32,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash -131572635, now seen corresponding path program 2 times [2023-02-16 04:30:32,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:32,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168631858] [2023-02-16 04:30:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:32,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:32,653 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:32,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:32,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:32,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:32,653 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:32,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:32,653 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:32,653 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2023-02-16 04:30:32,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:32,654 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:32,654 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:32,698 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:32,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,699 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-02-16 04:30:32,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:32,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:32,716 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:32,716 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=4} Honda state: {ULTIMATE.start_main_#t~nondet2#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:32,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,720 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-02-16 04:30:32,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:32,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:32,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,734 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-02-16 04:30:32,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:32,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:32,806 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:32,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,809 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:32,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:32,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:32,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:32,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:32,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:32,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:32,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2023-02-16 04:30:32,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:32,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:32,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,815 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,817 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:32,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:32,869 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:32,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,870 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:32,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:32,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:32,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:32,909 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:32,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:32,910 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:32,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:32,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-02-16 04:30:32,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:32,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,925 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-02-16 04:30:32,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:32,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:32,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:32,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:32,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:32,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:32,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:32,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:32,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,941 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-02-16 04:30:32,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:32,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:32,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:32,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:32,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:32,956 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:32,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:32,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:32,972 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 [2023-02-16 04:30:32,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,974 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-02-16 04:30:32,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:32,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:32,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:32,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:32,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:32,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:32,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:32,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:32,985 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:32,987 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:30:32,987 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:32,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:32,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:32,988 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:30:32,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-02-16 04:30:32,991 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:32,992 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:32,992 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:32,992 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-16 04:30:32,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:32,994 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:32,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:33,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:33,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:33,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:33,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:33,032 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:33,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:33,056 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 684 states and 1050 transitions. Complement of second has 7 states. [2023-02-16 04:30:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-02-16 04:30:33,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-16 04:30:33,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:33,057 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:33,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:33,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:33,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:33,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:33,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:33,096 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:33,096 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:33,110 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 694 states and 1033 transitions. Complement of second has 7 states. [2023-02-16 04:30:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-16 04:30:33,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-16 04:30:33,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:33,111 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:33,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:33,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:33,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:33,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:33,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:33,150 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:30:33,150 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:33,165 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 807 states and 1314 transitions. Complement of second has 8 states. [2023-02-16 04:30:33,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:30:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:30:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-16 04:30:33,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-16 04:30:33,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:33,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 4 letters. [2023-02-16 04:30:33,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:33,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 8 letters. [2023-02-16 04:30:33,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:33,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 807 states and 1314 transitions. [2023-02-16 04:30:33,169 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:30:33,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 807 states to 0 states and 0 transitions. [2023-02-16 04:30:33,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-16 04:30:33,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-16 04:30:33,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-16 04:30:33,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:30:33,170 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:30:33,170 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:30:33,170 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:30:33,170 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-02-16 04:30:33,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:30:33,170 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:30:33,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-16 04:30:33,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.02 04:30:33 BoogieIcfgContainer [2023-02-16 04:30:33,175 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-16 04:30:33,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:30:33,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:30:33,176 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:30:33,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:30:26" (3/4) ... [2023-02-16 04:30:33,178 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 04:30:33,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:30:33,178 INFO L158 Benchmark]: Toolchain (without parser) took 7017.21ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 100.2MB in the beginning and 51.8MB in the end (delta: 48.4MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2023-02-16 04:30:33,178 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:30:33,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 117.10ms. Allocated memory is still 136.3MB. Free memory was 100.2MB in the beginning and 90.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 04:30:33,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.96ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 89.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:30:33,178 INFO L158 Benchmark]: Boogie Preprocessor took 10.87ms. Allocated memory is still 136.3MB. Free memory was 89.6MB in the beginning and 88.8MB in the end (delta: 762.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:30:33,179 INFO L158 Benchmark]: RCFGBuilder took 154.27ms. Allocated memory is still 136.3MB. Free memory was 88.2MB in the beginning and 79.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:30:33,179 INFO L158 Benchmark]: BuchiAutomizer took 6712.47ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 79.8MB in the beginning and 51.8MB in the end (delta: 28.1MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2023-02-16 04:30:33,179 INFO L158 Benchmark]: Witness Printer took 2.09ms. Allocated memory is still 186.6MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:30:33,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 117.10ms. Allocated memory is still 136.3MB. Free memory was 100.2MB in the beginning and 90.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.96ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 89.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.87ms. Allocated memory is still 136.3MB. Free memory was 89.6MB in the beginning and 88.8MB in the end (delta: 762.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 154.27ms. Allocated memory is still 136.3MB. Free memory was 88.2MB in the beginning and 79.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6712.47ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 79.8MB in the beginning and 51.8MB in the end (delta: 28.1MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Witness Printer took 2.09ms. Allocated memory is still 186.6MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 7 deterministic, 3 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 7 locations. One deterministic module has affine ranking function x and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 4.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 494 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 290 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 311 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 278 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 207 mSDtfsCounter, 278 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT10 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax149 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf93 smp100 dnf100 smp100 tf107 neg98 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 90ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-16 04:30:33,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:33,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:33,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:33,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE