./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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/recursive-simple/id_i20_o20-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 10:03:45,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 10:03:45,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 10:03:45,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 10:03:45,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 10:03:45,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 10:03:45,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 10:03:45,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 10:03:45,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 10:03:45,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 10:03:45,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 10:03:45,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 10:03:45,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 10:03:45,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 10:03:45,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 10:03:45,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 10:03:45,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 10:03:45,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 10:03:45,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 10:03:45,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 10:03:45,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 10:03:45,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 10:03:45,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 10:03:45,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 10:03:45,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 10:03:45,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 10:03:45,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 10:03:45,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 10:03:45,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 10:03:45,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 10:03:45,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 10:03:45,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 10:03:45,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 10:03:45,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 10:03:45,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 10:03:45,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 10:03:45,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 10:03:45,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 10:03:45,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 10:03:45,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 10:03:45,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 10:03:45,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 10:03:45,268 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 10:03:45,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 10:03:45,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 10:03:45,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 10:03:45,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 10:03:45,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 10:03:45,270 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 10:03:45,271 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 10:03:45,271 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 10:03:45,271 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 10:03:45,272 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 10:03:45,272 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 10:03:45,272 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 10:03:45,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 10:03:45,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 10:03:45,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 10:03:45,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 10:03:45,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 10:03:45,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 10:03:45,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 10:03:45,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 10:03:45,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 10:03:45,274 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 10:03:45,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 10:03:45,275 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 10:03:45,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 10:03:45,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 10:03:45,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 10:03:45,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 10:03:45,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 10:03:45,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 10:03:45,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 10:03:45,278 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 10:03:45,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85 [2021-12-16 10:03:45,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 10:03:45,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 10:03:45,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 10:03:45,518 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 10:03:45,519 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 10:03:45,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2021-12-16 10:03:45,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256f48df5/58f867879d794925a5f99c48f61c405b/FLAG21da8fa26 [2021-12-16 10:03:45,980 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 10:03:45,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2021-12-16 10:03:45,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256f48df5/58f867879d794925a5f99c48f61c405b/FLAG21da8fa26 [2021-12-16 10:03:46,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256f48df5/58f867879d794925a5f99c48f61c405b [2021-12-16 10:03:46,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 10:03:46,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 10:03:46,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 10:03:46,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 10:03:46,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 10:03:46,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26abdb38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46, skipping insertion in model container [2021-12-16 10:03:46,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 10:03:46,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 10:03:46,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467] [2021-12-16 10:03:46,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:03:46,568 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 10:03:46,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467] [2021-12-16 10:03:46,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:03:46,593 INFO L208 MainTranslator]: Completed translation [2021-12-16 10:03:46,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46 WrapperNode [2021-12-16 10:03:46,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 10:03:46,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 10:03:46,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 10:03:46,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 10:03:46,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,620 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-16 10:03:46,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 10:03:46,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 10:03:46,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 10:03:46,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 10:03:46,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 10:03:46,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 10:03:46,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 10:03:46,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 10:03:46,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (1/1) ... [2021-12-16 10:03:46,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:46,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:46,664 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) [2021-12-16 10:03:46,688 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 [2021-12-16 10:03:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 10:03:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 10:03:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 10:03:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 10:03:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-12-16 10:03:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-12-16 10:03:46,750 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 10:03:46,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 10:03:46,862 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 10:03:46,872 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 10:03:46,873 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 10:03:46,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:03:46 BoogieIcfgContainer [2021-12-16 10:03:46,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 10:03:46,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 10:03:46,876 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 10:03:46,879 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 10:03:46,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:03:46,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 10:03:46" (1/3) ... [2021-12-16 10:03:46,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f23ce80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:03:46, skipping insertion in model container [2021-12-16 10:03:46,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:03:46,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:03:46" (2/3) ... [2021-12-16 10:03:46,883 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f23ce80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:03:46, skipping insertion in model container [2021-12-16 10:03:46,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:03:46,883 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:03:46" (3/3) ... [2021-12-16 10:03:46,885 INFO L388 chiAutomizerObserver]: Analyzing ICFG id_i20_o20-1.c [2021-12-16 10:03:46,927 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 10:03:46,927 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 10:03:46,927 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 10:03:46,927 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 10:03:46,928 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 10:03:46,928 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 10:03:46,928 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 10:03:46,928 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 10:03:46,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-12-16 10:03:46,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-16 10:03:46,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:03:46,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:03:46,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 10:03:46,979 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-16 10:03:46,979 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 10:03:46,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-12-16 10:03:46,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-16 10:03:46,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:03:46,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:03:46,983 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 10:03:46,983 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-16 10:03:46,990 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~input~0#1, main_~result~0#1;main_~input~0#1 := 20; 14#L13true call main_#t~ret5#1 := id(main_~input~0#1);< 12#idENTRYtrue [2021-12-16 10:03:46,990 INFO L793 eck$LassoCheckResult]: Loop: 12#idENTRYtrue ~x := #in~x; 8#L7true assume !(0 == ~x); 7#L8true call #t~ret4 := id(~x - 1);< 12#idENTRYtrue [2021-12-16 10:03:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:03:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-12-16 10:03:47,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:03:47,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226764298] [2021-12-16 10:03:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:03:47,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:03:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:03:47,088 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:03:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:03:47,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:03:47,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:03:47,122 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-12-16 10:03:47,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:03:47,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795603058] [2021-12-16 10:03:47,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:03:47,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:03:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:03:47,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:03:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:03:47,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:03:47,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:03:47,148 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-12-16 10:03:47,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:03:47,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566617800] [2021-12-16 10:03:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:03:47,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:03:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:03:47,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:03:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:03:47,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:03:47,275 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:03:47,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:03:47,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:03:47,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:03:47,276 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-16 10:03:47,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:47,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:03:47,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:03:47,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i20_o20-1.c_Iteration1_Loop [2021-12-16 10:03:47,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:03:47,277 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:03:47,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:03:47,362 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-16 10:03:47,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:47,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:47,365 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) [2021-12-16 10:03:47,366 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 [2021-12-16 10:03:47,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:03:47,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:03:47,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:03:47,393 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:03:47,419 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 [2021-12-16 10:03:47,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:47,423 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) [2021-12-16 10:03:47,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:03:47,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:03:47,438 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 [2021-12-16 10:03:47,472 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 [2021-12-16 10:03:47,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:47,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:47,474 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) [2021-12-16 10:03:47,475 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 [2021-12-16 10:03:47,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 10:03:47,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:03:47,506 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:03:47,507 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-2} Honda state: {id_#in~x=-2} Generalized eigenvectors: [{id_#in~x=-1}, {id_#in~x=0}, {id_#in~x=0}] Lambdas: [1, 0, 3] Nus: [1, 0] [2021-12-16 10:03:47,531 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 [2021-12-16 10:03:47,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:47,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:47,533 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) [2021-12-16 10:03:47,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:03:47,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:03:47,559 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 [2021-12-16 10:03:47,563 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:03:47,564 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:03:47,589 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 [2021-12-16 10:03:47,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:47,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:47,591 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) [2021-12-16 10:03:47,593 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 [2021-12-16 10:03:47,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:03:47,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:03:47,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:03:47,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret4=0} Honda state: {id_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:03:47,648 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 [2021-12-16 10:03:47,893 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:03:47,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:03:47,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:03:47,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:03:47,894 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 10:03:47,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:47,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:03:47,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:03:47,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i20_o20-1.c_Iteration1_Lasso [2021-12-16 10:03:47,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:03:47,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:03:47,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:47,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:03:48,094 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:03:48,098 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 10:03:48,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:48,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:48,101 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) [2021-12-16 10:03:48,108 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 [2021-12-16 10:03:48,109 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 [2021-12-16 10:03:48,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:03:48,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:03:48,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:03:48,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:03:48,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:03:48,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:03:48,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:03:48,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:03:48,155 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 [2021-12-16 10:03:48,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:48,157 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) [2021-12-16 10:03:48,162 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 [2021-12-16 10:03:48,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:03:48,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:03:48,171 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-16 10:03:48,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:03:48,171 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 [2021-12-16 10:03:48,180 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-16 10:03:48,180 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-16 10:03:48,200 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 10:03:48,224 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-12-16 10:03:48,224 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-12-16 10:03:48,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:03:48,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:03:48,231 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) [2021-12-16 10:03:48,236 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 10:03:48,245 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 [2021-12-16 10:03:48,258 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-16 10:03:48,258 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 10:03:48,258 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2021-12-16 10:03:48,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-16 10:03:48,289 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-12-16 10:03:48,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:03:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:03:48,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 10:03:48,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:03:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:03:48,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 10:03:48,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:03:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:03:48,454 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-16 10:03:48,455 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-16 10:03:48,560 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 30 states and 35 transitions. Complement of second has 13 states. [2021-12-16 10:03:48,563 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 [2021-12-16 10:03:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-16 10:03:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2021-12-16 10:03:48,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-16 10:03:48,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:03:48,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-16 10:03:48,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:03:48,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-16 10:03:48,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:03:48,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-12-16 10:03:48,576 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 10:03:48,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-12-16 10:03:48,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 10:03:48,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 10:03:48,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 10:03:48,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:03:48,580 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 10:03:48,580 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 10:03:48,580 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 10:03:48,580 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 10:03:48,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 10:03:48,581 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 10:03:48,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 10:03:48,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 10:03:48 BoogieIcfgContainer [2021-12-16 10:03:48,587 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 10:03:48,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 10:03:48,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 10:03:48,588 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 10:03:48,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:03:46" (3/4) ... [2021-12-16 10:03:48,594 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 10:03:48,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 10:03:48,595 INFO L158 Benchmark]: Toolchain (without parser) took 2191.86ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 58.2MB in the beginning and 73.1MB in the end (delta: -14.9MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2021-12-16 10:03:48,596 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:03:48,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.83ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 58.0MB in the beginning and 111.5MB in the end (delta: -53.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 10:03:48,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.81ms. Allocated memory is still 134.2MB. Free memory was 111.5MB in the beginning and 110.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:03:48,601 INFO L158 Benchmark]: Boogie Preprocessor took 12.05ms. Allocated memory is still 134.2MB. Free memory was 110.0MB in the beginning and 109.5MB in the end (delta: 541.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 10:03:48,602 INFO L158 Benchmark]: RCFGBuilder took 241.06ms. Allocated memory is still 134.2MB. Free memory was 109.5MB in the beginning and 101.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 10:03:48,603 INFO L158 Benchmark]: BuchiAutomizer took 1710.70ms. Allocated memory is still 134.2MB. Free memory was 100.6MB in the beginning and 73.1MB in the end (delta: 27.5MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2021-12-16 10:03:48,604 INFO L158 Benchmark]: Witness Printer took 6.26ms. Allocated memory is still 134.2MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:03:48,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.83ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 58.0MB in the beginning and 111.5MB in the end (delta: -53.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.81ms. Allocated memory is still 134.2MB. Free memory was 111.5MB in the beginning and 110.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.05ms. Allocated memory is still 134.2MB. Free memory was 110.0MB in the beginning and 109.5MB in the end (delta: 541.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 241.06ms. Allocated memory is still 134.2MB. Free memory was 109.5MB in the beginning and 101.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1710.70ms. Allocated memory is still 134.2MB. Free memory was 100.6MB in the beginning and 73.1MB in the end (delta: 27.5MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Witness Printer took 6.26ms. Allocated memory is still 134.2MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 2.7kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(x) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital41 mio100 ax100 hnf100 lsp65 ukn81 mio100 lsp96 div100 bol100 ite100 ukn100 eq199 hnf95 smp100 dnf153 smp100 tf103 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 102ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-16 10:03:48,643 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 [2021-12-16 10:03:48,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE