./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-numeric/rec_counter1.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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:41:55,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:41:55,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:41:55,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:41:55,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:41:55,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:41:55,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:41:55,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:41:55,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:41:55,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:41:55,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:41:55,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:41:55,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:41:55,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:41:55,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:41:55,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:41:55,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:41:55,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:41:55,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:41:55,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:41:55,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:41:55,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:41:55,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:41:55,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:41:55,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:41:55,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:41:55,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:41:55,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:41:55,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:41:55,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:41:55,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:41:55,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:41:55,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:41:55,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:41:55,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:41:55,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:41:55,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:41:55,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:41:55,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:41:55,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:41:55,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:41:55,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-17 09:41:55,408 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:41:55,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:41:55,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:41:55,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:41:55,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:41:55,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:41:55,410 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:41:55,410 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-17 09:41:55,410 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-17 09:41:55,410 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-17 09:41:55,411 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-17 09:41:55,411 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-17 09:41:55,411 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-17 09:41:55,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:41:55,412 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-17 09:41:55,413 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:41:55,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-17 09:41:55,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:41:55,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:41:55,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:41:55,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:41:55,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-17 09:41:55,414 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2023-02-17 09:41:55,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:41:55,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:41:55,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:41:55,590 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:41:55,590 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:41:55,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter1.c [2023-02-17 09:41:56,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:41:56,924 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:41:56,925 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter1.c [2023-02-17 09:41:56,929 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bca741de/1d8d1aa3dafe41c0912059fe52d3d373/FLAG16f8c0034 [2023-02-17 09:41:56,945 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bca741de/1d8d1aa3dafe41c0912059fe52d3d373 [2023-02-17 09:41:56,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:41:56,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:41:56,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:41:56,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:41:56,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:41:56,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:41:56" (1/1) ... [2023-02-17 09:41:56,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6532e5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:56, skipping insertion in model container [2023-02-17 09:41:56,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:41:56" (1/1) ... [2023-02-17 09:41:56,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:41:56,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:41:57,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:41:57,087 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:41:57,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:41:57,102 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:41:57,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57 WrapperNode [2023-02-17 09:41:57,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:41:57,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:41:57,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:41:57,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:41:57,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,119 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2023-02-17 09:41:57,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:41:57,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:41:57,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:41:57,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:41:57,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:41:57,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:41:57,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:41:57,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:41:57,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (1/1) ... [2023-02-17 09:41:57,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-17 09:41:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2023-02-17 09:41:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2023-02-17 09:41:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:41:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:41:57,207 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:41:57,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:41:57,273 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:41:57,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:41:57,285 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 09:41:57,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:41:57 BoogieIcfgContainer [2023-02-17 09:41:57,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:41:57,288 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-17 09:41:57,288 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-17 09:41:57,291 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-17 09:41:57,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:41:57,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.02 09:41:56" (1/3) ... [2023-02-17 09:41:57,293 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@765eb338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:41:57, skipping insertion in model container [2023-02-17 09:41:57,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:41:57,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:41:57" (2/3) ... [2023-02-17 09:41:57,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@765eb338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 09:41:57, skipping insertion in model container [2023-02-17 09:41:57,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 09:41:57,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:41:57" (3/3) ... [2023-02-17 09:41:57,311 INFO L332 chiAutomizerObserver]: Analyzing ICFG rec_counter1.c [2023-02-17 09:41:57,376 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-17 09:41:57,377 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-17 09:41:57,377 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-17 09:41:57,377 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-17 09:41:57,377 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-17 09:41:57,377 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-17 09:41:57,377 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-17 09:41:57,378 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-17 09:41:57,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:57,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-02-17 09:41:57,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:41:57,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:41:57,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-17 09:41:57,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-17 09:41:57,403 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-17 09:41:57,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:57,406 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-02-17 09:41:57,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:41:57,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:41:57,407 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-17 09:41:57,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-17 09:41:57,413 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L18true assume !(main_~i~0#1 <= 0); 15#L20true call main_#t~ret3#1 := rec(main_~i~0#1);< 12#$Ultimate##0true [2023-02-17 09:41:57,413 INFO L750 eck$LassoCheckResult]: Loop: 12#$Ultimate##0true ~a := #in~a; 4#L5true assume !(0 == ~a); 9#L8true call #t~ret0 := rec(~a - 1);< 12#$Ultimate##0true [2023-02-17 09:41:57,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:57,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1572139, now seen corresponding path program 1 times [2023-02-17 09:41:57,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:57,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959902736] [2023-02-17 09:41:57,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:57,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:57,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:57,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:57,516 INFO L85 PathProgramCache]: Analyzing trace with hash 29949, now seen corresponding path program 1 times [2023-02-17 09:41:57,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:57,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148724128] [2023-02-17 09:41:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:57,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:57,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:57,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:57,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:57,544 INFO L85 PathProgramCache]: Analyzing trace with hash -409047149, now seen corresponding path program 1 times [2023-02-17 09:41:57,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:57,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010544570] [2023-02-17 09:41:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:57,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:57,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:57,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:57,593 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:41:57,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:41:57,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:41:57,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:41:57,594 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:41:57,595 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,595 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:41:57,595 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:41:57,595 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Loop [2023-02-17 09:41:57,595 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:41:57,596 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:41:57,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,618 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,620 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,639 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:41:57,639 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:41:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-17 09:41:57,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,664 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-17 09:41:57,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,684 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,684 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-17 09:41:57,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-17 09:41:57,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,761 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-17 09:41:57,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,780 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,780 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,784 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-17 09:41:57,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,807 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-17 09:41:57,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:41:57,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,844 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-8} Honda state: {rec_#in~a=-8} Generalized eigenvectors: [{rec_#in~a=-1}, {rec_#in~a=0}, {rec_#in~a=0}] Lambdas: [1, 7, 12] Nus: [0, 0] [2023-02-17 09:41:57,849 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 [2023-02-17 09:41:57,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,851 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-17 09:41:57,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,876 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,876 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,885 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:41:57,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:41:57,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:41:57,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:41:57,885 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:41:57,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:41:57,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:41:57,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2023-02-17 09:41:57,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:41:57,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:41:57,887 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,892 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,893 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,897 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,899 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:57,905 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:41:57,908 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:41:57,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,916 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-17 09:41:57,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,927 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,928 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-17 09:41:57,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,933 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-17 09:41:57,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,946 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,947 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-17 09:41:57,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,952 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-17 09:41:57,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:57,976 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:57,976 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:57,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:57,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:57,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:57,984 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:57,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-17 09:41:57,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:57,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,009 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,009 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1#1=0} Honda state: {ULTIMATE.start_main_~res~1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-17 09:41:58,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,014 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-17 09:41:58,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,048 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,049 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,055 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-17 09:41:58,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,081 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,081 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4#1=0} Honda state: {ULTIMATE.start_#t~ret4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-17 09:41:58,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,087 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-17 09:41:58,109 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,109 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,114 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-17 09:41:58,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,150 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,150 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3#1=0} Honda state: {ULTIMATE.start_main_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,155 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 [2023-02-17 09:41:58,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,157 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-17 09:41:58,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,173 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,173 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-17 09:41:58,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,183 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-17 09:41:58,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,205 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,205 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,214 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-17 09:41:58,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 09:41:58,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 09:41:58,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,269 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-17 09:41:58,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:58,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-17 09:41:58,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,295 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-17 09:41:58,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:41:58,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:58,326 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 09:41:58,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-17 09:41:58,330 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:41:58,330 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:41:58,330 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:41:58,330 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:41:58,330 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 09:41:58,330 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,330 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:41:58,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:41:58,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2023-02-17 09:41:58,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:41:58,330 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:41:58,333 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,336 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,337 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,338 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,340 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,341 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,354 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,355 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:58,360 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:41:58,366 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 09:41:58,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,370 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-17 09:41:58,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-17 09:41:58,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,446 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-17 09:41:58,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-17 09:41:58,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,465 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-17 09:41:58,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,502 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-17 09:41:58,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-17 09:41:58,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,531 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-17 09:41:58,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,552 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-17 09:41:58,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,578 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-17 09:41:58,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,603 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 [2023-02-17 09:41:58,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,605 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-17 09:41:58,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,632 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-17 09:41:58,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:58,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:58,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:58,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:58,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:58,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,673 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-17 09:41:58,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:58,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:58,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:58,683 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-17 09:41:58,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:58,690 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-02-17 09:41:58,690 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-02-17 09:41:58,707 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 09:41:58,718 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-02-17 09:41:58,718 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-02-17 09:41:58,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:58,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:58,726 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:58,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-17 09:41:58,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 09:41:58,751 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-02-17 09:41:58,751 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 09:41:58,751 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2023-02-17 09:41:58,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:58,777 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-17 09:41:58,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:58,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:41:58,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:58,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 09:41:58,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:41:58,890 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2023-02-17 09:41:58,892 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:41:58,965 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 40 transitions. Complement of second has 13 states. [2023-02-17 09:41:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-17 09:41:58,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:41:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-02-17 09:41:58,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-17 09:41:58,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:58,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2023-02-17 09:41:58,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:58,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2023-02-17 09:41:58,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:58,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2023-02-17 09:41:58,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:41:58,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 18 states and 23 transitions. [2023-02-17 09:41:58,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-17 09:41:58,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-17 09:41:58,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2023-02-17 09:41:58,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 09:41:58,981 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-02-17 09:41:58,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2023-02-17 09:41:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2023-02-17 09:41:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:41:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2023-02-17 09:41:58,999 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2023-02-17 09:41:58,999 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2023-02-17 09:41:59,000 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-17 09:41:59,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2023-02-17 09:41:59,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:41:59,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:41:59,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:41:59,001 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:41:59,001 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 09:41:59,002 INFO L748 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 117#L18 assume !(main_~i~0#1 <= 0); 118#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 129#$Ultimate##0 ~a := #in~a; 127#L5 assume !(0 == ~a); 120#L8 call #t~ret0 := rec(~a - 1);< 122#$Ultimate##0 ~a := #in~a; 125#L5 assume 0 == ~a;#res := 0; 126#recFINAL assume true; 130#recEXIT >#35#return; 119#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 121#L10-2 [2023-02-17 09:41:59,002 INFO L750 eck$LassoCheckResult]: Loop: 121#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 121#L10-2 [2023-02-17 09:41:59,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1880555327, now seen corresponding path program 1 times [2023-02-17 09:41:59,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:59,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918417349] [2023-02-17 09:41:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:59,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:59,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,014 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2023-02-17 09:41:59,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:59,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565623234] [2023-02-17 09:41:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:59,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1832327022, now seen corresponding path program 1 times [2023-02-17 09:41:59,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:59,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396086353] [2023-02-17 09:41:59,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:59,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-02-17 09:41:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 09:41:59,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:41:59,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396086353] [2023-02-17 09:41:59,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396086353] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:41:59,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:41:59,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:41:59,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61989711] [2023-02-17 09:41:59,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:41:59,087 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:41:59,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:41:59,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:41:59,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:41:59,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:41:59,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:41:59,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:41:59,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2023-02-17 09:41:59,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:41:59,088 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:41:59,088 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,090 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,091 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:41:59,091 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:41:59,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,093 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-17 09:41:59,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:59,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:59,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,134 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-17 09:41:59,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:41:59,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:59,159 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 09:41:59,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,163 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:41:59,163 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:41:59,163 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:41:59,163 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:41:59,163 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 09:41:59,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:41:59,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:41:59,164 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2023-02-17 09:41:59,164 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:41:59,164 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:41:59,164 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,165 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:41:59,167 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 09:41:59,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,197 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-17 09:41:59,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:59,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:59,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:59,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:59,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:59,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:59,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:59,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:59,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 09:41:59,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,230 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-17 09:41:59,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:59,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:59,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:59,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:59,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:59,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:59,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:59,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:59,256 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 09:41:59,259 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 09:41:59,259 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 09:41:59,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,262 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 09:41:59,271 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 09:41:59,271 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 09:41:59,272 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2023-02-17 09:41:59,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-17 09:41:59,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,276 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 09:41:59,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,340 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:41:59,342 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-17 09:41:59,342 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:41:59,377 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 46 states and 65 transitions. Complement of second has 12 states. [2023-02-17 09:41:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-17 09:41:59,378 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:41:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2023-02-17 09:41:59,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2023-02-17 09:41:59,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 13 letters. Loop has 1 letters. [2023-02-17 09:41:59,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 2 letters. [2023-02-17 09:41:59,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 65 transitions. [2023-02-17 09:41:59,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:41:59,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 24 states and 31 transitions. [2023-02-17 09:41:59,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-02-17 09:41:59,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-02-17 09:41:59,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2023-02-17 09:41:59,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 09:41:59,393 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2023-02-17 09:41:59,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2023-02-17 09:41:59,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2023-02-17 09:41:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 09:41:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2023-02-17 09:41:59,398 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2023-02-17 09:41:59,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:41:59,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:41:59,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:41:59,400 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:41:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:41:59,418 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-02-17 09:41:59,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2023-02-17 09:41:59,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:41:59,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2023-02-17 09:41:59,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-02-17 09:41:59,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-02-17 09:41:59,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2023-02-17 09:41:59,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 09:41:59,423 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-17 09:41:59,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2023-02-17 09:41:59,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-17 09:41:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 09:41:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-02-17 09:41:59,425 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-17 09:41:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 09:41:59,426 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-17 09:41:59,426 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-17 09:41:59,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2023-02-17 09:41:59,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-17 09:41:59,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 09:41:59,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 09:41:59,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:41:59,428 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-17 09:41:59,428 INFO L748 eck$LassoCheckResult]: Stem: 300#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 301#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 293#L18 assume !(main_~i~0#1 <= 0); 294#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 308#$Ultimate##0 ~a := #in~a; 309#L5 assume !(0 == ~a); 297#L8 call #t~ret0 := rec(~a - 1);< 299#$Ultimate##0 ~a := #in~a; 306#L5 assume !(0 == ~a); 296#L8 call #t~ret0 := rec(~a - 1);< 299#$Ultimate##0 ~a := #in~a; 304#L5 assume 0 == ~a;#res := 0; 305#recFINAL assume true; 312#recEXIT >#35#return; 311#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 302#L10-2 assume !(~rescopy~0 > 0); 303#L10-3 #res := 1 + ~res~0; 310#recFINAL assume true; 307#recEXIT >#35#return; 295#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 298#L10-2 [2023-02-17 09:41:59,428 INFO L750 eck$LassoCheckResult]: Loop: 298#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 298#L10-2 [2023-02-17 09:41:59,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,428 INFO L85 PathProgramCache]: Analyzing trace with hash -873780632, now seen corresponding path program 1 times [2023-02-17 09:41:59,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:59,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445010636] [2023-02-17 09:41:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:59,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:59,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,456 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2023-02-17 09:41:59,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:59,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712223877] [2023-02-17 09:41:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:59,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:59,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1317395801, now seen corresponding path program 1 times [2023-02-17 09:41:59,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:41:59,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150291915] [2023-02-17 09:41:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:41:59,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:41:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:41:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:41:59,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:41:59,482 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:41:59,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:41:59,482 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:41:59,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:41:59,483 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 09:41:59,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:41:59,483 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:41:59,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2023-02-17 09:41:59,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:41:59,483 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:41:59,484 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,486 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:41:59,486 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 09:41:59,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,487 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-17 09:41:59,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 09:41:59,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:59,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,518 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-17 09:41:59,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 09:41:59,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 09:41:59,555 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 09:41:59,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,563 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 09:41:59,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 09:41:59,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 09:41:59,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 09:41:59,563 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 09:41:59,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 09:41:59,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 09:41:59,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2023-02-17 09:41:59,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 09:41:59,564 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 09:41:59,564 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,567 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 09:41:59,568 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 09:41:59,568 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 09:41:59,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,569 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-17 09:41:59,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 09:41:59,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 09:41:59,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 09:41:59,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 09:41:59,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 09:41:59,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 09:41:59,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 09:41:59,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 09:41:59,611 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 09:41:59,626 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 09:41:59,626 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-17 09:41:59,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 09:41:59,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:41:59,629 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 09:41:59,631 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 09:41:59,631 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 09:41:59,631 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 09:41:59,631 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2023-02-17 09:41:59,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-17 09:41:59,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,649 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 09:41:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-02-17 09:41:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,807 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:41:59,808 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-17 09:41:59,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:59,828 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2023-02-17 09:41:59,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-17 09:41:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-02-17 09:41:59,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2023-02-17 09:41:59,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,831 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 09:41:59,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,891 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:41:59,892 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-17 09:41:59,892 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:59,916 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2023-02-17 09:41:59,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-17 09:41:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-02-17 09:41:59,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2023-02-17 09:41:59,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,917 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 09:41:59,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:41:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:41:59,963 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:41:59,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:41:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:41:59,964 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-17 09:41:59,964 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:59,980 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 33 states and 41 transitions. Complement of second has 9 states. [2023-02-17 09:41:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-17 09:41:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:41:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-02-17 09:41:59,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 1 letters. [2023-02-17 09:41:59,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 1 letters. [2023-02-17 09:41:59,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 2 letters. [2023-02-17 09:41:59,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 09:41:59,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 41 transitions. [2023-02-17 09:41:59,983 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:41:59,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2023-02-17 09:41:59,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-17 09:41:59,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-17 09:41:59,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-17 09:41:59,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 09:41:59,984 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:41:59,984 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:41:59,984 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 09:41:59,984 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-17 09:41:59,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-17 09:41:59,984 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 09:41:59,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-17 09:41:59,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 09:41:59 BoogieIcfgContainer [2023-02-17 09:41:59,990 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-17 09:41:59,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 09:41:59,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 09:41:59,991 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 09:41:59,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:41:57" (3/4) ... [2023-02-17 09:41:59,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 09:41:59,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 09:41:59,993 INFO L158 Benchmark]: Toolchain (without parser) took 3044.87ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 110.4MB in the beginning and 135.8MB in the end (delta: -25.3MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-02-17 09:41:59,993 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:41:59,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.27ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 101.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 09:41:59,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.29ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 100.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:41:59,994 INFO L158 Benchmark]: Boogie Preprocessor took 10.81ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:41:59,994 INFO L158 Benchmark]: RCFGBuilder took 156.65ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 90.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 09:41:59,995 INFO L158 Benchmark]: BuchiAutomizer took 2701.71ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 89.6MB in the beginning and 136.8MB in the end (delta: -47.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-02-17 09:41:59,995 INFO L158 Benchmark]: Witness Printer took 2.48ms. Allocated memory is still 201.3MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:41:59,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.27ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 101.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.29ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 100.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.81ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 156.65ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 90.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2701.71ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 89.6MB in the beginning and 136.8MB in the end (delta: -47.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Witness Printer took 2.48ms. Allocated memory is still 201.3MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(a) and consists of 5 locations. One deterministic module has affine ranking function rescopy and consists of 5 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 78 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf94 smp100 dnf123 smp100 tf108 neg96 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 79ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 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! [2023-02-17 09:42:00,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE