./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 26d01a9c 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-?-26d01a9 [2023-02-18 08:54:00,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:54:00,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:54:00,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:54:00,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:54:00,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:54:00,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:54:00,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:54:00,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:54:00,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:54:00,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:54:00,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:54:00,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:54:00,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:54:00,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:54:00,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:54:00,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:54:00,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:54:00,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:54:00,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:54:00,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:54:00,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:54:00,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:54:00,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:54:00,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:54:00,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:54:00,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:54:00,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:54:00,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:54:00,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:54:00,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:54:00,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:54:00,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:54:00,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:54:00,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:54:00,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:54:00,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:54:00,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:54:00,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:54:00,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:54:00,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:54:00,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-18 08:54:00,350 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:54:00,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:54:00,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:54:00,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:54:00,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:54:00,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:54:00,351 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:54:00,352 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-18 08:54:00,352 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-18 08:54:00,352 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-18 08:54:00,352 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-18 08:54:00,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-18 08:54:00,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-18 08:54:00,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:54:00,354 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-18 08:54:00,354 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:54:00,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-18 08:54:00,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:54:00,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:54:00,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:54:00,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:54:00,355 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-18 08:54:00,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2023-02-18 08:54:00,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:54:00,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:54:00,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:54:00,591 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:54:00,591 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:54:00,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-02-18 08:54:01,536 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:54:01,680 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:54:01,680 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-02-18 08:54:01,684 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f62f8dd/5dc58c61368d4853ad42247fd531c3a0/FLAG01c63bd40 [2023-02-18 08:54:01,695 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f62f8dd/5dc58c61368d4853ad42247fd531c3a0 [2023-02-18 08:54:01,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:54:01,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:54:01,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:54:01,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:54:01,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:54:01,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6346b69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01, skipping insertion in model container [2023-02-18 08:54:01,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:54:01,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:54:01,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:54:01,827 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:54:01,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:54:01,843 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:54:01,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01 WrapperNode [2023-02-18 08:54:01,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:54:01,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:54:01,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:54:01,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:54:01,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,864 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-18 08:54:01,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:54:01,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:54:01,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:54:01,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:54:01,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,877 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:54:01,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:54:01,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:54:01,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:54:01,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (1/1) ... [2023-02-18 08:54:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:01,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:01,899 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) [2023-02-18 08:54:01,906 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 [2023-02-18 08:54:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:54:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:54:01,976 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:54:01,977 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:54:02,030 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:54:02,034 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:54:02,034 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:54:02,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:54:02 BoogieIcfgContainer [2023-02-18 08:54:02,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:54:02,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-18 08:54:02,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-18 08:54:02,039 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-18 08:54:02,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:54:02,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.02 08:54:01" (1/3) ... [2023-02-18 08:54:02,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e66e396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:54:02, skipping insertion in model container [2023-02-18 08:54:02,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:54:02,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:01" (2/3) ... [2023-02-18 08:54:02,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e66e396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:54:02, skipping insertion in model container [2023-02-18 08:54:02,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:54:02,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:54:02" (3/3) ... [2023-02-18 08:54:02,041 INFO L332 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2023-02-18 08:54:02,076 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-18 08:54:02,076 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-18 08:54:02,077 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-18 08:54:02,077 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-18 08:54:02,077 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-18 08:54:02,077 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-18 08:54:02,077 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-18 08:54:02,077 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-18 08:54:02,080 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) [2023-02-18 08:54:02,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-18 08:54:02,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:02,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:02,095 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:54:02,095 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:02,095 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-18 08:54:02,096 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) [2023-02-18 08:54:02,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-18 08:54:02,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:02,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:02,097 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:54:02,097 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:02,103 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L25-2true [2023-02-18 08:54:02,104 INFO L750 eck$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 [2023-02-18 08:54:02,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-18 08:54:02,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:02,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832544544] [2023-02-18 08:54:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:02,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:02,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161, now seen corresponding path program 1 times [2023-02-18 08:54:02,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:02,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254713245] [2023-02-18 08:54:02,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:02,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:02,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:02,219 INFO L85 PathProgramCache]: Analyzing trace with hash 889701363, now seen corresponding path program 1 times [2023-02-18 08:54:02,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:02,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732503597] [2023-02-18 08:54:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:02,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:02,250 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:02,251 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:02,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:02,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:02,251 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:02,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:02,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:02,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2023-02-18 08:54:02,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:02,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:02,263 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,276 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:02,294 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:02,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,297 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) [2023-02-18 08:54:02,299 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 [2023-02-18 08:54:02,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:02,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:02,347 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 [2023-02-18 08:54:02,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,349 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) [2023-02-18 08:54:02,350 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 [2023-02-18 08:54:02,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:02,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:02,383 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:02,386 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 [2023-02-18 08:54:02,386 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:02,387 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:02,387 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:02,387 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:02,387 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:02,387 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,387 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:02,387 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:02,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2023-02-18 08:54:02,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:02,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:02,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,401 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,426 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,431 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:02,434 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:02,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,450 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) [2023-02-18 08:54:02,469 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 [2023-02-18 08:54:02,479 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 [2023-02-18 08:54:02,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:02,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:02,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:02,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:02,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:02,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:02,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:02,509 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:02,517 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:02,517 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:02,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,565 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) [2023-02-18 08:54:02,566 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 [2023-02-18 08:54:02,571 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:02,571 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:02,572 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:02,572 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 [] [2023-02-18 08:54:02,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:02,579 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:02,610 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:02,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:02,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:02,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:02,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-18 08:54:02,688 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 [2023-02-18 08:54:02,689 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) [2023-02-18 08:54:02,721 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. [2023-02-18 08:54:02,723 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 [2023-02-18 08:54:02,726 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) [2023-02-18 08:54:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-02-18 08:54:02,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-18 08:54:02,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:02,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-18 08:54:02,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:02,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-18 08:54:02,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:02,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2023-02-18 08:54:02,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-18 08:54:02,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 18 states and 25 transitions. [2023-02-18 08:54:02,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-18 08:54:02,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-18 08:54:02,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2023-02-18 08:54:02,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:02,735 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2023-02-18 08:54:02,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2023-02-18 08:54:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-02-18 08:54:02,750 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) [2023-02-18 08:54:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2023-02-18 08:54:02,751 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-18 08:54:02,751 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-18 08:54:02,751 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-18 08:54:02,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2023-02-18 08:54:02,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-18 08:54:02,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:02,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:02,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-18 08:54:02,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:02,752 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 [2023-02-18 08:54:02,752 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 [2023-02-18 08:54:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-18 08:54:02,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:02,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957729563] [2023-02-18 08:54:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:02,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:02,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 1 times [2023-02-18 08:54:02,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:02,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720983324] [2023-02-18 08:54:02,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:02,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 295929837, now seen corresponding path program 1 times [2023-02-18 08:54:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:02,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935536118] [2023-02-18 08:54:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:02,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:02,782 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:02,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:02,782 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:02,782 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:02,782 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:02,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:02,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:02,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2023-02-18 08:54:02,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:02,783 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:02,786 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,787 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,789 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:02,796 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:02,796 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:02,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,798 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) [2023-02-18 08:54:02,800 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 [2023-02-18 08:54:02,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:02,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:02,833 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:02,834 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: [] [2023-02-18 08:54:02,837 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 [2023-02-18 08:54:02,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,840 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) [2023-02-18 08:54:02,843 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 [2023-02-18 08:54:02,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:02,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:02,865 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:02,865 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: [] [2023-02-18 08:54:02,869 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 [2023-02-18 08:54:02,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,871 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) [2023-02-18 08:54:02,873 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 [2023-02-18 08:54:02,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:02,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:02,895 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:02,895 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:54:02,898 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 [2023-02-18 08:54:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,899 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) [2023-02-18 08:54:02,900 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 [2023-02-18 08:54:02,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:02,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:02,934 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 [2023-02-18 08:54:02,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:02,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:02,936 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) [2023-02-18 08:54:02,937 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 [2023-02-18 08:54:02,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:02,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,031 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:03,037 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 [2023-02-18 08:54:03,037 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:03,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:03,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:03,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:03,037 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:03,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:03,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:03,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2023-02-18 08:54:03,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:03,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:03,039 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,041 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,043 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,044 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,047 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:03,047 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:03,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,050 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) [2023-02-18 08:54:03,058 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 [2023-02-18 08:54:03,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:03,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:03,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:03,074 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 [2023-02-18 08:54:03,077 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:03,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:03,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,081 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) [2023-02-18 08:54:03,081 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 [2023-02-18 08:54:03,084 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 [2023-02-18 08:54:03,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:03,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,091 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-18 08:54:03,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,091 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-18 08:54:03,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:03,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:03,103 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 [2023-02-18 08:54:03,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,104 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) [2023-02-18 08:54:03,105 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 [2023-02-18 08:54:03,107 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 [2023-02-18 08:54:03,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:03,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:03,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:03,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:03,128 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 [2023-02-18 08:54:03,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,130 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) [2023-02-18 08:54:03,130 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 [2023-02-18 08:54:03,133 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 [2023-02-18 08:54:03,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:03,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:03,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:03,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:03,150 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:03,152 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-18 08:54:03,152 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:54:03,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,155 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) [2023-02-18 08:54:03,157 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 [2023-02-18 08:54:03,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:03,158 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:03,158 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:03,158 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 [] [2023-02-18 08:54:03,161 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 [2023-02-18 08:54:03,162 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:03,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:03,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:03,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:03,195 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:54:03,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:03,211 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 [2023-02-18 08:54:03,212 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) [2023-02-18 08:54:03,248 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. [2023-02-18 08:54:03,249 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 [2023-02-18 08:54:03,250 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) [2023-02-18 08:54:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-18 08:54:03,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-18 08:54:03,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2023-02-18 08:54:03,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2023-02-18 08:54:03,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 55 transitions. [2023-02-18 08:54:03,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-02-18 08:54:03,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 46 transitions. [2023-02-18 08:54:03,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-02-18 08:54:03,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-02-18 08:54:03,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 46 transitions. [2023-02-18 08:54:03,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:03,256 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 46 transitions. [2023-02-18 08:54:03,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 46 transitions. [2023-02-18 08:54:03,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2023-02-18 08:54:03,258 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) [2023-02-18 08:54:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2023-02-18 08:54:03,258 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 39 transitions. [2023-02-18 08:54:03,259 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2023-02-18 08:54:03,259 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-18 08:54:03,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2023-02-18 08:54:03,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-02-18 08:54:03,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:03,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:03,259 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-18 08:54:03,260 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:03,260 INFO L748 eck$LassoCheckResult]: Stem: 206#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 207#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 215#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 217#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 218#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 211#L26-2 [2023-02-18 08:54:03,260 INFO L750 eck$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 [2023-02-18 08:54:03,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,260 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2023-02-18 08:54:03,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288455150] [2023-02-18 08:54:03,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1560156, now seen corresponding path program 1 times [2023-02-18 08:54:03,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36319873] [2023-02-18 08:54:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash 585737416, now seen corresponding path program 1 times [2023-02-18 08:54:03,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482677955] [2023-02-18 08:54:03,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,283 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:03,283 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:03,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:03,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:03,283 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:03,283 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:03,283 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:03,283 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2023-02-18 08:54:03,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:03,284 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:03,284 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,285 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,286 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,289 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:03,289 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:03,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,291 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) [2023-02-18 08:54:03,293 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 [2023-02-18 08:54:03,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:03,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,307 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:03,308 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: [] [2023-02-18 08:54:03,313 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 [2023-02-18 08:54:03,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,314 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) [2023-02-18 08:54:03,314 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 [2023-02-18 08:54:03,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:03,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,327 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 [2023-02-18 08:54:03,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,328 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) [2023-02-18 08:54:03,329 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 [2023-02-18 08:54:03,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:03,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,351 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:03,354 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 [2023-02-18 08:54:03,355 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:03,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:03,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:03,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:03,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:03,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:03,355 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:03,355 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2023-02-18 08:54:03,355 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:03,355 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:03,356 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,360 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,362 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,365 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:03,368 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:03,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,369 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) [2023-02-18 08:54:03,371 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 [2023-02-18 08:54:03,373 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 [2023-02-18 08:54:03,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:03,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:03,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:03,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:03,398 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:03,400 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-18 08:54:03,400 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:54:03,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,403 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) [2023-02-18 08:54:03,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:03,411 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:03,411 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:03,411 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 [] [2023-02-18 08:54:03,424 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 [2023-02-18 08:54:03,424 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 [2023-02-18 08:54:03,425 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:03,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:03,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:03,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:03,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:03,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:03,458 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 [2023-02-18 08:54:03,458 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) [2023-02-18 08:54:03,482 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. [2023-02-18 08:54:03,482 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 [2023-02-18 08:54:03,483 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) [2023-02-18 08:54:03,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-02-18 08:54:03,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-18 08:54:03,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-18 08:54:03,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 8 letters. [2023-02-18 08:54:03,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 90 transitions. [2023-02-18 08:54:03,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-18 08:54:03,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 76 transitions. [2023-02-18 08:54:03,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2023-02-18 08:54:03,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2023-02-18 08:54:03,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 76 transitions. [2023-02-18 08:54:03,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:03,486 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 76 transitions. [2023-02-18 08:54:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 76 transitions. [2023-02-18 08:54:03,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2023-02-18 08:54:03,491 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) [2023-02-18 08:54:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2023-02-18 08:54:03,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-02-18 08:54:03,493 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-02-18 08:54:03,493 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-18 08:54:03,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 69 transitions. [2023-02-18 08:54:03,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-18 08:54:03,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:03,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:03,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:03,496 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:03,496 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 [2023-02-18 08:54:03,496 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 [2023-02-18 08:54:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 1 times [2023-02-18 08:54:03,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170766259] [2023-02-18 08:54:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 2 times [2023-02-18 08:54:03,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702547684] [2023-02-18 08:54:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash 69132454, now seen corresponding path program 1 times [2023-02-18 08:54:03,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309432931] [2023-02-18 08:54:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,532 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:03,533 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:03,533 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:03,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:03,533 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:03,533 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,533 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:03,533 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:03,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2023-02-18 08:54:03,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:03,533 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:03,534 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,535 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,536 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,536 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:03,540 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:03,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,544 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) [2023-02-18 08:54:03,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:03,564 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 [2023-02-18 08:54:03,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:03,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,583 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 [2023-02-18 08:54:03,590 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:03,590 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: [] [2023-02-18 08:54:03,596 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 [2023-02-18 08:54:03,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,597 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) [2023-02-18 08:54:03,598 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 [2023-02-18 08:54:03,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:03,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,607 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:03,608 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: [] [2023-02-18 08:54:03,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-18 08:54:03,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,611 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) [2023-02-18 08:54:03,613 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 [2023-02-18 08:54:03,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:03,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:03,629 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: [] [2023-02-18 08:54:03,635 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 [2023-02-18 08:54:03,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,638 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) [2023-02-18 08:54:03,638 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 [2023-02-18 08:54:03,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:03,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,661 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 [2023-02-18 08:54:03,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,662 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) [2023-02-18 08:54:03,666 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 [2023-02-18 08:54:03,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:03,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:03,754 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:03,763 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 [2023-02-18 08:54:03,763 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:03,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:03,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:03,763 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:03,763 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:03,763 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,763 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:03,763 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:03,763 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2023-02-18 08:54:03,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:03,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:03,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,767 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,767 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,769 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:03,771 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:03,776 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:03,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,778 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) [2023-02-18 08:54:03,780 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 [2023-02-18 08:54:03,781 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 [2023-02-18 08:54:03,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:03,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:03,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:03,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:03,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-18 08:54:03,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,798 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) [2023-02-18 08:54:03,799 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 [2023-02-18 08:54:03,800 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 [2023-02-18 08:54:03,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:03,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:03,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:03,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:03,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-18 08:54:03,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,825 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) [2023-02-18 08:54:03,827 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 [2023-02-18 08:54:03,828 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 [2023-02-18 08:54:03,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:03,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:03,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:03,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:03,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:03,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:03,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:03,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:03,853 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:03,853 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:03,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:03,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:03,855 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) [2023-02-18 08:54:03,856 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 [2023-02-18 08:54:03,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:03,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:03,858 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:03,858 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 [] [2023-02-18 08:54:03,861 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 [2023-02-18 08:54:03,861 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:03,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:03,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:03,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:03,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:03,897 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 [2023-02-18 08:54:03,898 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) [2023-02-18 08:54:03,929 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. [2023-02-18 08:54:03,929 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 [2023-02-18 08:54:03,930 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) [2023-02-18 08:54:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-02-18 08:54:03,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2023-02-18 08:54:03,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-18 08:54:03,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2023-02-18 08:54:03,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:03,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 163 transitions. [2023-02-18 08:54:03,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-18 08:54:03,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 89 states and 132 transitions. [2023-02-18 08:54:03,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-02-18 08:54:03,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2023-02-18 08:54:03,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 132 transitions. [2023-02-18 08:54:03,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:03,941 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 132 transitions. [2023-02-18 08:54:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 132 transitions. [2023-02-18 08:54:03,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2023-02-18 08:54:03,948 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) [2023-02-18 08:54:03,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2023-02-18 08:54:03,951 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 117 transitions. [2023-02-18 08:54:03,951 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 117 transitions. [2023-02-18 08:54:03,951 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-18 08:54:03,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 117 transitions. [2023-02-18 08:54:03,952 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-02-18 08:54:03,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:03,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:03,953 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:03,953 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:03,953 INFO L748 eck$LassoCheckResult]: Stem: 561#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 562#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 572#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 608#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 607#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 605#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 604#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 601#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 602#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 580#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 579#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 575#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 576#L33 [2023-02-18 08:54:03,953 INFO L750 eck$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 [2023-02-18 08:54:03,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 1 times [2023-02-18 08:54:03,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095279951] [2023-02-18 08:54:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 3 times [2023-02-18 08:54:03,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296758857] [2023-02-18 08:54:03,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:03,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:03,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:03,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1555787668, now seen corresponding path program 1 times [2023-02-18 08:54:03,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:03,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539040153] [2023-02-18 08:54:03,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:03,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:04,006 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:04,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:04,006 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:04,006 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:04,006 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:04,006 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,006 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:04,006 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:04,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2023-02-18 08:54:04,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:04,007 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:04,008 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,011 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,017 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:04,018 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:04,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,019 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) [2023-02-18 08:54:04,021 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 [2023-02-18 08:54:04,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:04,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,049 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 [2023-02-18 08:54:04,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,050 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) [2023-02-18 08:54:04,053 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 [2023-02-18 08:54:04,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:04,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:04,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:04,138 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:04,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:04,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:04,139 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:04,139 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:04,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:04,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:04,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2023-02-18 08:54:04,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:04,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:04,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,142 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,142 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,144 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:04,144 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:04,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,151 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) [2023-02-18 08:54:04,152 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 [2023-02-18 08:54:04,157 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 [2023-02-18 08:54:04,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:04,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:04,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:04,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:04,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:04,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:04,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:04,185 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:04,188 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:04,188 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:04,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,193 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) [2023-02-18 08:54:04,201 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:04,201 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:04,201 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:04,201 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 [] [2023-02-18 08:54:04,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-02-18 08:54:04,207 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:04,208 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 [2023-02-18 08:54:04,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:04,234 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 [2023-02-18 08:54:04,234 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) [2023-02-18 08:54:04,250 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. [2023-02-18 08:54:04,251 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 [2023-02-18 08:54:04,251 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) [2023-02-18 08:54:04,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-02-18 08:54:04,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-18 08:54:04,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,252 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:04,281 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 [2023-02-18 08:54:04,281 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) [2023-02-18 08:54:04,305 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. [2023-02-18 08:54:04,305 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 [2023-02-18 08:54:04,307 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) [2023-02-18 08:54:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-18 08:54:04,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-18 08:54:04,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,308 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:04,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:04,345 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 [2023-02-18 08:54:04,346 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) [2023-02-18 08:54:04,364 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. [2023-02-18 08:54:04,365 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 [2023-02-18 08:54:04,365 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) [2023-02-18 08:54:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-18 08:54:04,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-18 08:54:04,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-18 08:54:04,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-18 08:54:04,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 189 transitions. [2023-02-18 08:54:04,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2023-02-18 08:54:04,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 95 states and 142 transitions. [2023-02-18 08:54:04,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2023-02-18 08:54:04,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-02-18 08:54:04,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 142 transitions. [2023-02-18 08:54:04,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:04,369 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 142 transitions. [2023-02-18 08:54:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 142 transitions. [2023-02-18 08:54:04,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 55. [2023-02-18 08:54:04,372 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) [2023-02-18 08:54:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 83 transitions. [2023-02-18 08:54:04,372 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-02-18 08:54:04,372 INFO L428 stractBuchiCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-02-18 08:54:04,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-18 08:54:04,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 83 transitions. [2023-02-18 08:54:04,373 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2023-02-18 08:54:04,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:04,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:04,373 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:04,373 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:04,374 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 [2023-02-18 08:54:04,374 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 [2023-02-18 08:54:04,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,374 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 2 times [2023-02-18 08:54:04,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:04,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490211146] [2023-02-18 08:54:04,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:04,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 1 times [2023-02-18 08:54:04,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:04,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958820826] [2023-02-18 08:54:04,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:04,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash 576410797, now seen corresponding path program 2 times [2023-02-18 08:54:04,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:04,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83869969] [2023-02-18 08:54:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:04,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:04,402 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:04,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:04,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:04,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:04,402 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:04,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:04,402 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:04,402 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2023-02-18 08:54:04,402 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:04,402 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:04,404 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,404 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,405 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,406 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,407 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,411 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:04,412 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:04,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,417 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) [2023-02-18 08:54:04,419 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 [2023-02-18 08:54:04,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:04,428 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:04,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:54:04,431 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 [2023-02-18 08:54:04,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,432 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) [2023-02-18 08:54:04,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:04,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,440 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 [2023-02-18 08:54:04,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:04,449 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: [] [2023-02-18 08:54:04,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-02-18 08:54:04,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,453 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) [2023-02-18 08:54:04,454 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 [2023-02-18 08:54:04,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:04,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:04,466 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: [] [2023-02-18 08:54:04,469 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 [2023-02-18 08:54:04,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,470 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) [2023-02-18 08:54:04,470 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 [2023-02-18 08:54:04,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:04,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,484 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:04,484 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:54:04,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-02-18 08:54:04,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,490 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) [2023-02-18 08:54:04,492 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 [2023-02-18 08:54:04,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:04,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,519 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 [2023-02-18 08:54:04,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,521 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) [2023-02-18 08:54:04,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:04,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,548 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 [2023-02-18 08:54:04,574 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:04,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-02-18 08:54:04,577 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:04,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:04,577 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:04,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:04,578 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:04,578 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:04,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:04,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2023-02-18 08:54:04,578 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:04,578 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:04,579 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,581 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,581 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:04,595 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:04,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,597 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) [2023-02-18 08:54:04,613 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 [2023-02-18 08:54:04,614 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 [2023-02-18 08:54:04,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:04,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:04,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:04,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:04,621 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:04,621 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:04,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:04,644 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 [2023-02-18 08:54:04,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,645 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) [2023-02-18 08:54:04,647 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 [2023-02-18 08:54:04,649 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 [2023-02-18 08:54:04,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:04,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:04,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:04,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:04,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:04,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:04,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:04,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:04,677 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 [2023-02-18 08:54:04,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,679 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) [2023-02-18 08:54:04,682 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 [2023-02-18 08:54:04,683 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 [2023-02-18 08:54:04,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:04,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:04,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:04,689 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-18 08:54:04,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:04,690 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-18 08:54:04,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:04,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:04,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-18 08:54:04,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,697 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) [2023-02-18 08:54:04,699 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 [2023-02-18 08:54:04,701 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 [2023-02-18 08:54:04,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:04,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:04,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:04,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:04,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:04,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:04,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:04,729 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 [2023-02-18 08:54:04,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,730 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) [2023-02-18 08:54:04,732 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 [2023-02-18 08:54:04,734 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 [2023-02-18 08:54:04,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:04,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:04,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:04,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:04,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:04,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:04,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:04,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:04,762 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:04,762 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:04,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-02-18 08:54:04,777 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) [2023-02-18 08:54:04,779 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 [2023-02-18 08:54:04,780 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:04,780 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:04,780 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:04,780 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 [] [2023-02-18 08:54:04,780 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 [2023-02-18 08:54:04,783 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 [2023-02-18 08:54:04,783 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:04,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 08:54:04,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:04,816 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 [2023-02-18 08:54:04,816 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) [2023-02-18 08:54:04,860 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. [2023-02-18 08:54:04,861 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 [2023-02-18 08:54:04,861 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) [2023-02-18 08:54:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2023-02-18 08:54:04,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2023-02-18 08:54:04,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2023-02-18 08:54:04,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2023-02-18 08:54:04,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:04,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 359 transitions. [2023-02-18 08:54:04,864 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2023-02-18 08:54:04,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 203 states and 306 transitions. [2023-02-18 08:54:04,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2023-02-18 08:54:04,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-02-18 08:54:04,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 306 transitions. [2023-02-18 08:54:04,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:04,865 INFO L218 hiAutomatonCegarLoop]: Abstraction has 203 states and 306 transitions. [2023-02-18 08:54:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 306 transitions. [2023-02-18 08:54:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 184. [2023-02-18 08:54:04,880 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) [2023-02-18 08:54:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 278 transitions. [2023-02-18 08:54:04,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 184 states and 278 transitions. [2023-02-18 08:54:04,882 INFO L428 stractBuchiCegarLoop]: Abstraction has 184 states and 278 transitions. [2023-02-18 08:54:04,882 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-18 08:54:04,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 278 transitions. [2023-02-18 08:54:04,883 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2023-02-18 08:54:04,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:04,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:04,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:04,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:04,884 INFO L748 eck$LassoCheckResult]: Stem: 1551#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1552#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1561#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1547#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1548#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1571#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1635#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1630#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1628#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 1629#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1642#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1637#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1626#L26 [2023-02-18 08:54:04,884 INFO L750 eck$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 [2023-02-18 08:54:04,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,885 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 2 times [2023-02-18 08:54:04,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:04,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643688904] [2023-02-18 08:54:04,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:04,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:04,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 2 times [2023-02-18 08:54:04,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:04,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364121272] [2023-02-18 08:54:04,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:04,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:04,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash -232935838, now seen corresponding path program 3 times [2023-02-18 08:54:04,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:04,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325169629] [2023-02-18 08:54:04,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:04,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:04,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:04,921 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:04,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:04,921 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:04,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:04,921 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:04,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:04,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:04,922 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2023-02-18 08:54:04,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:04,922 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:04,922 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:04,926 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:04,926 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:04,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,927 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) [2023-02-18 08:54:04,929 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 [2023-02-18 08:54:04,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:04,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:04,945 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 [2023-02-18 08:54:04,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:04,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:04,947 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) [2023-02-18 08:54:04,948 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 [2023-02-18 08:54:04,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:04,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,038 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:05,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-02-18 08:54:05,047 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:05,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:05,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:05,047 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:05,047 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:05,047 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,047 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:05,047 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:05,047 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2023-02-18 08:54:05,047 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:05,047 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:05,048 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,050 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,051 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,051 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,053 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:05,053 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:05,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,054 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) [2023-02-18 08:54:05,056 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 [2023-02-18 08:54:05,058 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 [2023-02-18 08:54:05,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:05,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:05,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:05,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:05,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:05,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:05,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:05,080 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:05,082 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-18 08:54:05,082 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:54:05,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,085 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) [2023-02-18 08:54:05,093 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:05,093 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:05,093 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:05,093 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 [] [2023-02-18 08:54:05,096 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 [2023-02-18 08:54:05,096 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 [2023-02-18 08:54:05,096 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:05,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,114 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:05,125 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 [2023-02-18 08:54:05,126 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) [2023-02-18 08:54:05,155 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. [2023-02-18 08:54:05,155 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 [2023-02-18 08:54:05,156 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) [2023-02-18 08:54:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-18 08:54:05,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-18 08:54:05,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,156 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:05,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,178 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:05,187 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 [2023-02-18 08:54:05,187 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) [2023-02-18 08:54:05,210 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. [2023-02-18 08:54:05,210 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 [2023-02-18 08:54:05,211 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) [2023-02-18 08:54:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-02-18 08:54:05,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-18 08:54:05,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,211 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,223 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:05,243 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 [2023-02-18 08:54:05,243 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) [2023-02-18 08:54:05,265 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. [2023-02-18 08:54:05,265 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 [2023-02-18 08:54:05,266 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) [2023-02-18 08:54:05,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2023-02-18 08:54:05,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-18 08:54:05,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-18 08:54:05,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-18 08:54:05,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,267 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 424 states and 646 transitions. [2023-02-18 08:54:05,269 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-02-18 08:54:05,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 424 states to 284 states and 418 transitions. [2023-02-18 08:54:05,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2023-02-18 08:54:05,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2023-02-18 08:54:05,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 418 transitions. [2023-02-18 08:54:05,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:05,271 INFO L218 hiAutomatonCegarLoop]: Abstraction has 284 states and 418 transitions. [2023-02-18 08:54:05,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 418 transitions. [2023-02-18 08:54:05,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 226. [2023-02-18 08:54:05,275 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) [2023-02-18 08:54:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 343 transitions. [2023-02-18 08:54:05,276 INFO L240 hiAutomatonCegarLoop]: Abstraction has 226 states and 343 transitions. [2023-02-18 08:54:05,276 INFO L428 stractBuchiCegarLoop]: Abstraction has 226 states and 343 transitions. [2023-02-18 08:54:05,276 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-18 08:54:05,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 343 transitions. [2023-02-18 08:54:05,277 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 30 [2023-02-18 08:54:05,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:05,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:05,278 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:05,278 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:05,278 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 [2023-02-18 08:54:05,278 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 [2023-02-18 08:54:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,278 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 4 times [2023-02-18 08:54:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445051052] [2023-02-18 08:54:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:05,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:05,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,285 INFO L85 PathProgramCache]: Analyzing trace with hash -449776328, now seen corresponding path program 2 times [2023-02-18 08:54:05,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:05,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850926023] [2023-02-18 08:54:05,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:05,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:05,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,291 INFO L85 PathProgramCache]: Analyzing trace with hash 898024594, now seen corresponding path program 2 times [2023-02-18 08:54:05,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:05,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274301661] [2023-02-18 08:54:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:05,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:05,319 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:05,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:05,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:05,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:05,320 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:05,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:05,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:05,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2023-02-18 08:54:05,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:05,320 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:05,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,322 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,323 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,324 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,324 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,326 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:05,326 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:05,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,329 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) [2023-02-18 08:54:05,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:05,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,351 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 [2023-02-18 08:54:05,359 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:05,359 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: [] [2023-02-18 08:54:05,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-02-18 08:54:05,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,364 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) [2023-02-18 08:54:05,365 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 [2023-02-18 08:54:05,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:05,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:05,391 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: [] [2023-02-18 08:54:05,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:05,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,404 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) [2023-02-18 08:54:05,404 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 [2023-02-18 08:54:05,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:05,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,418 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 [2023-02-18 08:54:05,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,419 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) [2023-02-18 08:54:05,419 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 [2023-02-18 08:54:05,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:05,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,441 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:05,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-02-18 08:54:05,444 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:05,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:05,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:05,444 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:05,444 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:05,444 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,444 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:05,444 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:05,444 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2023-02-18 08:54:05,444 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:05,444 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:05,445 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,446 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,450 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:05,450 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:05,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,451 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) [2023-02-18 08:54:05,453 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 [2023-02-18 08:54:05,510 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 [2023-02-18 08:54:05,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:05,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:05,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:05,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:05,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:05,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:05,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:05,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:05,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,538 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) [2023-02-18 08:54:05,540 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 [2023-02-18 08:54:05,541 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 [2023-02-18 08:54:05,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:05,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:05,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:05,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:05,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:05,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:05,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:05,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:05,566 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:05,566 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:05,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,568 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) [2023-02-18 08:54:05,569 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 [2023-02-18 08:54:05,570 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:05,571 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:05,571 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:05,571 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 [] [2023-02-18 08:54:05,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:05,577 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:05,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:05,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 08:54:05,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:05,614 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 [2023-02-18 08:54:05,614 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) [2023-02-18 08:54:05,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:05,658 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 [2023-02-18 08:54:05,660 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 [2023-02-18 08:54:05,678 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. [2023-02-18 08:54:05,681 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 [2023-02-18 08:54:05,681 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) [2023-02-18 08:54:05,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions. [2023-02-18 08:54:05,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-18 08:54:05,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 20 letters. Loop has 8 letters. [2023-02-18 08:54:05,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 16 letters. [2023-02-18 08:54:05,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:05,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 900 transitions. [2023-02-18 08:54:05,686 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-02-18 08:54:05,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 544 states and 832 transitions. [2023-02-18 08:54:05,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-02-18 08:54:05,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2023-02-18 08:54:05,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 544 states and 832 transitions. [2023-02-18 08:54:05,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:05,692 INFO L218 hiAutomatonCegarLoop]: Abstraction has 544 states and 832 transitions. [2023-02-18 08:54:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states and 832 transitions. [2023-02-18 08:54:05,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 405. [2023-02-18 08:54:05,700 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) [2023-02-18 08:54:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 644 transitions. [2023-02-18 08:54:05,701 INFO L240 hiAutomatonCegarLoop]: Abstraction has 405 states and 644 transitions. [2023-02-18 08:54:05,702 INFO L428 stractBuchiCegarLoop]: Abstraction has 405 states and 644 transitions. [2023-02-18 08:54:05,702 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-02-18 08:54:05,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 405 states and 644 transitions. [2023-02-18 08:54:05,703 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2023-02-18 08:54:05,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:05,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:05,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:05,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:05,705 INFO L748 eck$LassoCheckResult]: Stem: 3925#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3926#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3935#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3981#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4005#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 3996#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3964#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3940#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3927#L33 [2023-02-18 08:54:05,705 INFO L750 eck$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 [2023-02-18 08:54:05,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,705 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 1 times [2023-02-18 08:54:05,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:05,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118616749] [2023-02-18 08:54:05,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:05,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,712 INFO L85 PathProgramCache]: Analyzing trace with hash 930337844, now seen corresponding path program 1 times [2023-02-18 08:54:05,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:05,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78376847] [2023-02-18 08:54:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:05,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:05,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:05,718 INFO L85 PathProgramCache]: Analyzing trace with hash 25289191, now seen corresponding path program 1 times [2023-02-18 08:54:05,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:05,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348737639] [2023-02-18 08:54:05,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:05,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:05,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:05,727 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:05,727 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:05,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:05,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:05,727 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:05,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,727 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:05,727 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:05,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2023-02-18 08:54:05,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:05,728 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:05,728 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,729 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,730 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,731 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,731 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,733 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:05,734 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:05,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,735 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) [2023-02-18 08:54:05,737 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 [2023-02-18 08:54:05,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:05,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,760 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:05,760 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: [] [2023-02-18 08:54:05,765 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 [2023-02-18 08:54:05,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,773 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) [2023-02-18 08:54:05,775 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 [2023-02-18 08:54:05,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:05,794 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:05,794 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:54:05,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:05,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,798 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) [2023-02-18 08:54:05,800 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 [2023-02-18 08:54:05,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:05,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,816 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 [2023-02-18 08:54:05,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,817 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) [2023-02-18 08:54:05,818 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 [2023-02-18 08:54:05,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:05,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:05,855 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:05,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:05,858 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:05,858 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:05,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:05,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:05,859 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:05,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,859 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:05,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:05,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2023-02-18 08:54:05,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:05,859 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:05,860 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,868 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,869 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,871 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,872 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:05,874 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:05,874 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:05,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,876 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) [2023-02-18 08:54:05,881 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 [2023-02-18 08:54:05,887 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 [2023-02-18 08:54:05,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:05,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:05,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:05,887 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-18 08:54:05,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:05,888 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-18 08:54:05,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:05,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:05,907 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 [2023-02-18 08:54:05,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,909 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) [2023-02-18 08:54:05,913 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 [2023-02-18 08:54:05,914 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 [2023-02-18 08:54:05,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:05,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:05,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:05,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:05,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:05,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:05,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:05,955 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 [2023-02-18 08:54:05,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,957 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) [2023-02-18 08:54:05,962 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 [2023-02-18 08:54:05,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 08:54:05,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:05,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:05,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:05,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:05,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:05,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:05,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:05,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:05,982 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:05,982 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:05,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:05,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:05,983 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) [2023-02-18 08:54:05,985 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 [2023-02-18 08:54:05,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:05,986 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:05,986 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:05,987 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 [] [2023-02-18 08:54:05,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-02-18 08:54:05,990 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:05,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:06,021 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 [2023-02-18 08:54:06,021 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) [2023-02-18 08:54:06,074 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. [2023-02-18 08:54:06,074 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 [2023-02-18 08:54:06,075 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) [2023-02-18 08:54:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2023-02-18 08:54:06,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2023-02-18 08:54:06,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2023-02-18 08:54:06,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2023-02-18 08:54:06,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1086 states and 1724 transitions. [2023-02-18 08:54:06,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-18 08:54:06,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1086 states to 677 states and 1020 transitions. [2023-02-18 08:54:06,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-02-18 08:54:06,082 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-02-18 08:54:06,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 677 states and 1020 transitions. [2023-02-18 08:54:06,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:06,083 INFO L218 hiAutomatonCegarLoop]: Abstraction has 677 states and 1020 transitions. [2023-02-18 08:54:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states and 1020 transitions. [2023-02-18 08:54:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 463. [2023-02-18 08:54:06,088 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) [2023-02-18 08:54:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 729 transitions. [2023-02-18 08:54:06,089 INFO L240 hiAutomatonCegarLoop]: Abstraction has 463 states and 729 transitions. [2023-02-18 08:54:06,089 INFO L428 stractBuchiCegarLoop]: Abstraction has 463 states and 729 transitions. [2023-02-18 08:54:06,089 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-02-18 08:54:06,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 463 states and 729 transitions. [2023-02-18 08:54:06,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-18 08:54:06,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:06,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:06,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:54:06,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-18 08:54:06,091 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 [2023-02-18 08:54:06,091 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 [2023-02-18 08:54:06,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:06,092 INFO L85 PathProgramCache]: Analyzing trace with hash 25229600, now seen corresponding path program 1 times [2023-02-18 08:54:06,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:06,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869961625] [2023-02-18 08:54:06,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:06,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:06,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:06,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:06,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1510086, now seen corresponding path program 2 times [2023-02-18 08:54:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:06,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103473281] [2023-02-18 08:54:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:06,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:06,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:06,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:06,122 INFO L85 PathProgramCache]: Analyzing trace with hash -131572635, now seen corresponding path program 2 times [2023-02-18 08:54:06,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:06,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300385232] [2023-02-18 08:54:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:06,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:06,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:06,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:06,132 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:06,133 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:06,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:06,133 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:06,133 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:06,133 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,133 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:06,133 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:06,133 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2023-02-18 08:54:06,133 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:06,133 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:06,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,137 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,137 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,140 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:06,140 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:06,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,141 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) [2023-02-18 08:54:06,143 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 [2023-02-18 08:54:06,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:06,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:06,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:06,166 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:54:06,169 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 [2023-02-18 08:54:06,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,170 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) [2023-02-18 08:54:06,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:06,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:06,190 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 [2023-02-18 08:54:06,200 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 [2023-02-18 08:54:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,202 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) [2023-02-18 08:54:06,203 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 [2023-02-18 08:54:06,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:06,205 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:06,294 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:06,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2023-02-18 08:54:06,298 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:06,298 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:06,298 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:06,298 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:06,298 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:06,298 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,298 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:06,298 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:06,298 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2023-02-18 08:54:06,298 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:06,298 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:06,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,300 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,300 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:06,303 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:06,303 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:06,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,304 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) [2023-02-18 08:54:06,306 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 [2023-02-18 08:54:06,307 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 [2023-02-18 08:54:06,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:06,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:06,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:06,313 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-18 08:54:06,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:06,314 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-18 08:54:06,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:06,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:06,332 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 [2023-02-18 08:54:06,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,333 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) [2023-02-18 08:54:06,335 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 [2023-02-18 08:54:06,336 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 [2023-02-18 08:54:06,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:06,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:06,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:06,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:06,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:06,343 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:06,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:06,355 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 [2023-02-18 08:54:06,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,356 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) [2023-02-18 08:54:06,358 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 [2023-02-18 08:54:06,360 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 [2023-02-18 08:54:06,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:06,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:06,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:06,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:06,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:06,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:06,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:06,385 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 [2023-02-18 08:54:06,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,386 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) [2023-02-18 08:54:06,386 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 [2023-02-18 08:54:06,389 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 [2023-02-18 08:54:06,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:06,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:06,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:06,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:06,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:06,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:06,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:06,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:06,402 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:06,403 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:06,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:06,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:06,404 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) [2023-02-18 08:54:06,405 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 [2023-02-18 08:54:06,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:06,407 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:06,407 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:06,407 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 [] [2023-02-18 08:54:06,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2023-02-18 08:54:06,410 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:06,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:06,447 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 [2023-02-18 08:54:06,448 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) [2023-02-18 08:54:06,469 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. [2023-02-18 08:54:06,470 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 [2023-02-18 08:54:06,470 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) [2023-02-18 08:54:06,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-02-18 08:54:06,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-18 08:54:06,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,471 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:06,498 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 [2023-02-18 08:54:06,498 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) [2023-02-18 08:54:06,535 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. [2023-02-18 08:54:06,536 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 [2023-02-18 08:54:06,536 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) [2023-02-18 08:54:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-18 08:54:06,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-18 08:54:06,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,536 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:06,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:06,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:06,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:06,568 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 [2023-02-18 08:54:06,569 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) [2023-02-18 08:54:06,583 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. [2023-02-18 08:54:06,583 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 [2023-02-18 08:54:06,584 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) [2023-02-18 08:54:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-18 08:54:06,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-18 08:54:06,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 4 letters. [2023-02-18 08:54:06,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 8 letters. [2023-02-18 08:54:06,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:06,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 807 states and 1314 transitions. [2023-02-18 08:54:06,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:54:06,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 807 states to 0 states and 0 transitions. [2023-02-18 08:54:06,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-18 08:54:06,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-18 08:54:06,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-18 08:54:06,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-18 08:54:06,588 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:54:06,588 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:54:06,588 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:54:06,588 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-02-18 08:54:06,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-18 08:54:06,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:54:06,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-18 08:54:06,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.02 08:54:06 BoogieIcfgContainer [2023-02-18 08:54:06,594 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-18 08:54:06,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:54:06,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:54:06,594 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:54:06,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:54:02" (3/4) ... [2023-02-18 08:54:06,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 08:54:06,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:54:06,596 INFO L158 Benchmark]: Toolchain (without parser) took 4898.69ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 118.7MB in the beginning and 58.7MB in the end (delta: 60.0MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2023-02-18 08:54:06,596 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:54:06,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.07ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 109.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 08:54:06,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.73ms. Allocated memory is still 148.9MB. Free memory was 109.3MB in the beginning and 107.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:54:06,597 INFO L158 Benchmark]: Boogie Preprocessor took 13.27ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 106.7MB in the end (delta: 990.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:54:06,597 INFO L158 Benchmark]: RCFGBuilder took 157.29ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 98.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:54:06,597 INFO L158 Benchmark]: BuchiAutomizer took 4557.36ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 98.3MB in the beginning and 59.7MB in the end (delta: 38.6MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. [2023-02-18 08:54:06,597 INFO L158 Benchmark]: Witness Printer took 2.05ms. Allocated memory is still 182.5MB. Free memory was 59.7MB in the beginning and 58.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:54:06,598 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 123.7MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.07ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 109.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.73ms. Allocated memory is still 148.9MB. Free memory was 109.3MB in the beginning and 107.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.27ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 106.7MB in the end (delta: 990.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 157.29ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 98.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4557.36ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 98.3MB in the beginning and 59.7MB in the end (delta: 38.6MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. * Witness Printer took 2.05ms. Allocated memory is still 182.5MB. Free memory was 59.7MB in the beginning and 58.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 4.5s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. 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: inital28 mio100 ax145 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq145 hnf93 smp100 dnf100 smp100 tf106 neg98 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-18 08:54:06,604 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 [2023-02-18 08:54:06,806 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 [2023-02-18 08:54:07,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE