./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Pure2Phase-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Pure2Phase-1.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 2a633be8572429ac13238ea7bd46ff22a6a657dc142a1db237c08b8a68a6d4e8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:12:47,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:12:47,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:12:47,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:12:47,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:12:47,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:12:47,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:12:47,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:12:47,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:12:47,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:12:47,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:12:47,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:12:47,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:12:47,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:12:47,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:12:47,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:12:47,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:12:47,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:12:47,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:12:47,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:12:47,948 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:12:47,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:12:47,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:12:47,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:12:47,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:12:47,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:12:47,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:12:47,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:12:47,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:12:47,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:12:47,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:12:47,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:12:47,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:12:47,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:12:47,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:12:47,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:12:47,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:12:47,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:12:47,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:12:47,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:12:47,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:12:47,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:12:47,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:12:48,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:12:48,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:12:48,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:12:48,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:12:48,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:12:48,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:12:48,015 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:12:48,015 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:12:48,015 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:12:48,016 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:12:48,016 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:12:48,016 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:12:48,016 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:12:48,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:12:48,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:12:48,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:12:48,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:12:48,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:12:48,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:12:48,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:12:48,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:12:48,018 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:12:48,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:12:48,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:12:48,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:12:48,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:12:48,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:12:48,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:12:48,020 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:12:48,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a633be8572429ac13238ea7bd46ff22a6a657dc142a1db237c08b8a68a6d4e8 [2022-07-23 14:12:48,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:12:48,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:12:48,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:12:48,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:12:48,275 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:12:48,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Pure2Phase-1.c [2022-07-23 14:12:48,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba0838a70/db59d49a0a3a4af4992b647e2c11bef0/FLAG2f7b664f5 [2022-07-23 14:12:48,675 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:12:48,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Pure2Phase-1.c [2022-07-23 14:12:48,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba0838a70/db59d49a0a3a4af4992b647e2c11bef0/FLAG2f7b664f5 [2022-07-23 14:12:49,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba0838a70/db59d49a0a3a4af4992b647e2c11bef0 [2022-07-23 14:12:49,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:12:49,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:12:49,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:12:49,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:12:49,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:12:49,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5ddadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49, skipping insertion in model container [2022-07-23 14:12:49,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:12:49,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:12:49,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:12:49,251 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:12:49,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:12:49,280 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:12:49,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49 WrapperNode [2022-07-23 14:12:49,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:12:49,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:12:49,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:12:49,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:12:49,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,315 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2022-07-23 14:12:49,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:12:49,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:12:49,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:12:49,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:12:49,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:12:49,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:12:49,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:12:49,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:12:49,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (1/1) ... [2022-07-23 14:12:49,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:49,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:49,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:49,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 14:12:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:12:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:12:49,466 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:12:49,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:12:49,544 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:12:49,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:12:49,553 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:12:49,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:12:49 BoogieIcfgContainer [2022-07-23 14:12:49,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:12:49,555 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:12:49,556 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:12:49,558 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:12:49,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:12:49,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:12:49" (1/3) ... [2022-07-23 14:12:49,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@709062df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:12:49, skipping insertion in model container [2022-07-23 14:12:49,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:12:49,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:12:49" (2/3) ... [2022-07-23 14:12:49,561 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@709062df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:12:49, skipping insertion in model container [2022-07-23 14:12:49,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:12:49,562 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:12:49" (3/3) ... [2022-07-23 14:12:49,563 INFO L354 chiAutomizerObserver]: Analyzing ICFG Pure2Phase-1.c [2022-07-23 14:12:49,609 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:12:49,610 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:12:49,610 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:12:49,610 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:12:49,610 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:12:49,610 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:12:49,610 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:12:49,610 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:12:49,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2022-07-23 14:12:49,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:12:49,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:49,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:49,633 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:12:49,633 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:12:49,633 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:12:49,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2022-07-23 14:12:49,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:12:49,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:49,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:49,635 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:12:49,635 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:12:49,640 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#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_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L20true assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 6#L21true assume !!(main_~z~0#1 <= 1073741823); 4#L24-2true [2022-07-23 14:12:49,641 INFO L754 eck$LassoCheckResult]: Loop: 4#L24-2true assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 11#L24true assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1; 4#L24-2true [2022-07-23 14:12:49,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:49,645 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-07-23 14:12:49,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:49,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330985832] [2022-07-23 14:12:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:49,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:49,746 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:49,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:49,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:49,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1643, now seen corresponding path program 1 times [2022-07-23 14:12:49,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:49,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988688165] [2022-07-23 14:12:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:49,810 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:49,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:49,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:49,828 INFO L85 PathProgramCache]: Analyzing trace with hash 889571474, now seen corresponding path program 1 times [2022-07-23 14:12:49,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:49,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896798955] [2022-07-23 14:12:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:49,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:49,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:49,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:49,957 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:49,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:49,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:49,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:49,958 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:12:49,959 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:49,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:49,959 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:49,959 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration1_Loop [2022-07-23 14:12:49,959 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:49,960 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:49,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:49,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:49,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,064 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:50,065 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:12:50,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:50,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:50,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-23 14:12:50,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:50,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:50,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:12:50,180 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:12:50,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-23 14:12:50,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:50,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:50,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-23 14:12:50,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:50,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:50,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:12:50,217 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:12:50,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-23 14:12:50,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:50,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:50,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-23 14:12:50,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:50,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:50,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-07-23 14:12:50,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:50,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:50,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:12:50,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:50,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-23 14:12:50,327 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:12:50,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:50,335 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:50,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:50,336 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:50,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:50,336 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:12:50,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,337 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:50,337 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:50,337 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration1_Loop [2022-07-23 14:12:50,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:50,337 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:50,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,424 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:50,431 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:12:50,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:50,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:50,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-23 14:12:50,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:50,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:50,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:50,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:50,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:50,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:12:50,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:12:50,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:12:50,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:50,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:50,503 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:50,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-23 14:12:50,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:50,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:50,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:12:50,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:50,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:50,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:50,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:12:50,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:12:50,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:12:50,537 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:12:50,537 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:12:50,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:50,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:50,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-23 14:12:50,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:12:50,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:12:50,548 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:12:50,549 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2022-07-23 14:12:50,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:50,568 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:12:50,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:50,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:12:50,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:50,629 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:12:50,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:50,693 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:12:50,694 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:50,725 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 39 transitions. Complement of second has 8 states. [2022-07-23 14:12:50,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:12:50,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2022-07-23 14:12:50,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-23 14:12:50,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:50,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-23 14:12:50,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:50,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 4 letters. [2022-07-23 14:12:50,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:50,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2022-07-23 14:12:50,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:12:50,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 11 states and 14 transitions. [2022-07-23 14:12:50,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-23 14:12:50,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-07-23 14:12:50,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2022-07-23 14:12:50,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:12:50,742 INFO L369 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-23 14:12:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2022-07-23 14:12:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-07-23 14:12:50,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-07-23 14:12:50,787 INFO L392 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-23 14:12:50,787 INFO L374 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-23 14:12:50,787 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:12:50,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-07-23 14:12:50,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:12:50,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:50,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:50,789 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-23 14:12:50,789 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-23 14:12:50,789 INFO L752 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 88#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_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 97#L20 assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 95#L21 assume !!(main_~z~0#1 <= 1073741823); 96#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 93#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 94#L27 [2022-07-23 14:12:50,789 INFO L754 eck$LassoCheckResult]: Loop: 94#L27 assume !!(main_~z~0#1 <= 1073741823); 89#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 90#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 94#L27 [2022-07-23 14:12:50,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:50,790 INFO L85 PathProgramCache]: Analyzing trace with hash 889571467, now seen corresponding path program 1 times [2022-07-23 14:12:50,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:50,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337329602] [2022-07-23 14:12:50,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:50,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-23 14:12:50,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:50,818 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:50,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:50,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash 58335, now seen corresponding path program 1 times [2022-07-23 14:12:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:50,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826359210] [2022-07-23 14:12:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:50,841 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:50,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:50,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1275385621, now seen corresponding path program 1 times [2022-07-23 14:12:50,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:50,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320527016] [2022-07-23 14:12:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:50,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:50,856 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:50,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:50,898 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:50,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:50,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:50,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:50,898 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:12:50,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,903 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:50,903 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:50,904 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration2_Loop [2022-07-23 14:12:50,904 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:50,904 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:50,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:50,994 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:50,994 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:12:50,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:50,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-23 14:12:51,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:51,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,036 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:12:51,037 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:12:51,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,062 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-23 14:12:51,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:51,064 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,076 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:12:51,076 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: [] [2022-07-23 14:12:51,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,094 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-23 14:12:51,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:51,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,111 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:12:51,111 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=389018447, ULTIMATE.start_main_#t~nondet2#1=389018447} Honda state: {ULTIMATE.start_main_~z~0#1=389018447, ULTIMATE.start_main_#t~nondet2#1=389018447} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:12:51,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,128 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-23 14:12:51,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:51,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,155 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-23 14:12:51,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:12:51,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,215 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:12:51,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,218 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:51,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:51,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:51,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:51,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:12:51,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:51,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:51,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration2_Loop [2022-07-23 14:12:51,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:51,219 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:51,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,286 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:51,287 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:12:51,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,289 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:51,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:51,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:51,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:51,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:51,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:12:51,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:12:51,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-23 14:12:51,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:12:51,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,349 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-23 14:12:51,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:51,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:51,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:12:51,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:51,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:51,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:51,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:12:51,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:12:51,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:12:51,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,387 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-23 14:12:51,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:51,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:51,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:51,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:51,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:51,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:12:51,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:12:51,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:12:51,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,452 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-23 14:12:51,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:51,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:51,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:12:51,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:51,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:51,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:51,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:12:51,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:12:51,472 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:12:51,475 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:12:51,475 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-23 14:12:51,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,477 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-23 14:12:51,516 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:12:51,516 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:12:51,516 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:12:51,516 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 [] [2022-07-23 14:12:51,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-07-23 14:12:51,533 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:12:51,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:51,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:12:51,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:51,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:12:51,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:51,584 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:12:51,584 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:51,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. 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 16 states and 21 transitions. Complement of second has 6 states. [2022-07-23 14:12:51,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:12:51,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-07-23 14:12:51,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2022-07-23 14:12:51,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:51,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2022-07-23 14:12:51,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:51,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2022-07-23 14:12:51,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:51,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2022-07-23 14:12:51,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:51,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2022-07-23 14:12:51,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-07-23 14:12:51,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-23 14:12:51,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2022-07-23 14:12:51,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:12:51,604 INFO L369 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-07-23 14:12:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2022-07-23 14:12:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-07-23 14:12:51,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2022-07-23 14:12:51,605 INFO L392 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-07-23 14:12:51,605 INFO L374 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-07-23 14:12:51,606 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 14:12:51,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2022-07-23 14:12:51,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:51,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:51,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:51,607 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:12:51,607 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:12:51,607 INFO L752 eck$LassoCheckResult]: Stem: 164#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 165#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_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 175#L20 assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 174#L21 assume !!(main_~z~0#1 <= 1073741823); 166#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 168#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 171#L27 assume !!(main_~z~0#1 <= 1073741823); 172#L24-2 [2022-07-23 14:12:51,607 INFO L754 eck$LassoCheckResult]: Loop: 172#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 176#L24 assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1; 172#L24-2 [2022-07-23 14:12:51,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:51,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1806911730, now seen corresponding path program 2 times [2022-07-23 14:12:51,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:51,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457232164] [2022-07-23 14:12:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:51,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:51,613 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:51,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1643, now seen corresponding path program 2 times [2022-07-23 14:12:51,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:51,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643243247] [2022-07-23 14:12:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:51,621 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:51,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:51,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:51,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1275385628, now seen corresponding path program 1 times [2022-07-23 14:12:51,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:51,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481985217] [2022-07-23 14:12:51,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:51,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:51,631 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:51,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:51,655 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:51,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:51,655 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:51,655 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:51,655 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:12:51,655 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,655 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:51,655 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:51,655 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration3_Loop [2022-07-23 14:12:51,655 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:51,655 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:51,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,701 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:51,701 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:12:51,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,703 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:51,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-23 14:12:51,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,760 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:12:51,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-23 14:12:51,806 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:12:51,806 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-2} Honda state: {ULTIMATE.start_main_~y~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0#1=-1}, {ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 12, 9] Nus: [0, 0] [2022-07-23 14:12:51,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,830 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-23 14:12:51,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:51,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:12:51,845 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:12:51,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,864 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-23 14:12:51,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:51,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:51,890 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:51,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-23 14:12:51,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:12:51,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:51,935 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:12:51,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:51,939 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:51,939 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:51,939 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:51,939 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:51,939 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:12:51,939 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:51,940 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:51,940 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:51,940 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration3_Loop [2022-07-23 14:12:51,940 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:51,940 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:51,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:51,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:52,028 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:52,029 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:12:52,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,032 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:52,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:52,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:12:52,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:52,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:52,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:52,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:12:52,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:12:52,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-23 14:12:52,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:12:52,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:52,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,091 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:52,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:52,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:52,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:52,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:52,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:12:52,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:12:52,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-23 14:12:52,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:12:52,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:52,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,155 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:52,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:52,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:12:52,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:52,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:52,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:52,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:12:52,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:12:52,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-23 14:12:52,179 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:12:52,192 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:12:52,192 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:12:52,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,194 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-23 14:12:52,197 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:12:52,197 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:12:52,197 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:12:52,198 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2022-07-23 14:12:52,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:52,224 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:12:52,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:52,282 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:12:52,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 21 states and 28 transitions. Complement of second has 5 states. [2022-07-23 14:12:52,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:12:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-07-23 14:12:52,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-23 14:12:52,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2022-07-23 14:12:52,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-23 14:12:52,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2022-07-23 14:12:52,309 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:52,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 22 transitions. [2022-07-23 14:12:52,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-07-23 14:12:52,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-07-23 14:12:52,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2022-07-23 14:12:52,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:12:52,310 INFO L369 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-07-23 14:12:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2022-07-23 14:12:52,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-23 14:12:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2022-07-23 14:12:52,312 INFO L392 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-07-23 14:12:52,312 INFO L374 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-07-23 14:12:52,312 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 14:12:52,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2022-07-23 14:12:52,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:12:52,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:12:52,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:12:52,313 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2022-07-23 14:12:52,313 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:12:52,313 INFO L752 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 248#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_~y~0#1, main_~z~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 259#L20 assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 258#L21 assume !!(main_~z~0#1 <= 1073741823); 249#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 251#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 254#L27 assume !!(main_~z~0#1 <= 1073741823); 255#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 262#L24 assume main_~y~0#1 >= 0;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 256#L27 assume !!(main_~z~0#1 <= 1073741823); 257#L24-2 [2022-07-23 14:12:52,313 INFO L754 eck$LassoCheckResult]: Loop: 257#L24-2 assume !!(main_~z~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 260#L24 assume !(main_~y~0#1 >= 0);main_~z~0#1 := main_~z~0#1 - 1; 257#L24-2 [2022-07-23 14:12:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:52,314 INFO L85 PathProgramCache]: Analyzing trace with hash 882248616, now seen corresponding path program 3 times [2022-07-23 14:12:52,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:52,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155464777] [2022-07-23 14:12:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:52,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:52,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:52,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:52,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:52,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1643, now seen corresponding path program 3 times [2022-07-23 14:12:52,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:52,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472087357] [2022-07-23 14:12:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:52,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:52,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:52,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:52,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:52,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1732363346, now seen corresponding path program 2 times [2022-07-23 14:12:52,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:12:52,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296582682] [2022-07-23 14:12:52,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:12:52,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:12:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:52,340 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:12:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:12:52,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:12:52,364 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:52,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:52,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:52,364 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:52,364 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:12:52,364 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,364 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:52,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:52,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration4_Loop [2022-07-23 14:12:52,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:52,365 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:52,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:52,412 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:12:52,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,414 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-23 14:12:52,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:12:52,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:52,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:52,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,446 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-23 14:12:52,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:12:52,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:12:52,479 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:12:52,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-23 14:12:52,483 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:12:52,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:12:52,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:12:52,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:12:52,483 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:12:52,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:12:52,483 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:12:52,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure2Phase-1.c_Iteration4_Loop [2022-07-23 14:12:52,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:12:52,483 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:12:52,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:12:52,538 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:12:52,538 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:12:52,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,540 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-23 14:12:52,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:12:52,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:12:52,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:12:52,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:12:52,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:12:52,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:12:52,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:12:52,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:12:52,559 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:12:52,561 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:12:52,561 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:12:52,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:12:52,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:12:52,563 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:12:52,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-23 14:12:52,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:12:52,564 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:12:52,564 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:12:52,564 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2022-07-23 14:12:52,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-23 14:12:52,584 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:12:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,626 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:52,644 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:12:52,644 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 5 states. [2022-07-23 14:12:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:12:52,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-07-23 14:12:52,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-23 14:12:52,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,655 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:12:52,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,685 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:52,696 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:12:52,696 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,703 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 5 states. [2022-07-23 14:12:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:12:52,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-07-23 14:12:52,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-23 14:12:52,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,705 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:12:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:12:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:12:52,733 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:12:52,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:12:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:12:52,755 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:12:52,756 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,765 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 4 states. [2022-07-23 14:12:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:12:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:12:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-07-23 14:12:52,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-23 14:12:52,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-23 14:12:52,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-23 14:12:52,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:12:52,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2022-07-23 14:12:52,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:12:52,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2022-07-23 14:12:52,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 14:12:52,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 14:12:52,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 14:12:52,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:12:52,769 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:12:52,769 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:12:52,769 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:12:52,769 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 14:12:52,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 14:12:52,770 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:12:52,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 14:12:52,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 02:12:52 BoogieIcfgContainer [2022-07-23 14:12:52,776 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 14:12:52,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 14:12:52,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 14:12:52,776 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 14:12:52,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:12:49" (3/4) ... [2022-07-23 14:12:52,780 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 14:12:52,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 14:12:52,781 INFO L158 Benchmark]: Toolchain (without parser) took 3666.24ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.1MB in the beginning and 41.0MB in the end (delta: 9.1MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2022-07-23 14:12:52,782 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:12:52,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.90ms. Allocated memory is still 88.1MB. Free memory was 49.9MB in the beginning and 65.5MB in the end (delta: -15.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-07-23 14:12:52,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.39ms. Allocated memory is still 88.1MB. Free memory was 65.3MB in the beginning and 64.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:12:52,783 INFO L158 Benchmark]: Boogie Preprocessor took 21.19ms. Allocated memory is still 88.1MB. Free memory was 64.1MB in the beginning and 63.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:12:52,783 INFO L158 Benchmark]: RCFGBuilder took 214.13ms. Allocated memory is still 88.1MB. Free memory was 63.1MB in the beginning and 55.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 14:12:52,783 INFO L158 Benchmark]: BuchiAutomizer took 3220.36ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 41.7MB in the end (delta: 13.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-07-23 14:12:52,784 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 107.0MB. Free memory was 41.7MB in the beginning and 41.0MB in the end (delta: 707.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:12:52,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.90ms. Allocated memory is still 88.1MB. Free memory was 49.9MB in the beginning and 65.5MB in the end (delta: -15.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.39ms. Allocated memory is still 88.1MB. Free memory was 65.3MB in the beginning and 64.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.19ms. Allocated memory is still 88.1MB. Free memory was 64.1MB in the beginning and 63.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 214.13ms. Allocated memory is still 88.1MB. Free memory was 63.1MB in the beginning and 55.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3220.36ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 41.7MB in the end (delta: 13.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 107.0MB. Free memory was 41.7MB in the beginning and 41.0MB in the end (delta: 707.0kB). 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * z + 1 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 2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 56 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg95 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-23 14:12:52,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-23 14:12:53,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-23 14:12:53,223 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