./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/wcsstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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-dietlibc/wcsstr.i -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 b18f22aa0242fc741d93005272cc93444d5a107b685bf4453016ed833583be3a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:01:46,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:01:46,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:01:46,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:01:46,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:01:46,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:01:46,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:01:46,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:01:46,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:01:46,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:01:46,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:01:46,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:01:46,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:01:46,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:01:46,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:01:46,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:01:46,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:01:46,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:01:46,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:01:46,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:01:46,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:01:46,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:01:46,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:01:46,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:01:46,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:01:46,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:01:46,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:01:46,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:01:46,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:01:46,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:01:46,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:01:46,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:01:46,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:01:46,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:01:46,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:01:46,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:01:46,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:01:46,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:01:46,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:01:46,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:01:46,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:01:46,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 22:01:46,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:01:46,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:01:46,275 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:01:46,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:01:46,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:01:46,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:01:46,276 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:01:46,276 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:01:46,276 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:01:46,277 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:01:46,277 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:01:46,277 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:01:46,277 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:01:46,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:01:46,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:01:46,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:01:46,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:01:46,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:01:46,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:01:46,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:01:46,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:01:46,283 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:01:46,283 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:01:46,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:01:46,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:01:46,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:01:46,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:01:46,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:01:46,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:01:46,286 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:01:46,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18f22aa0242fc741d93005272cc93444d5a107b685bf4453016ed833583be3a [2021-12-21 22:01:46,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:01:46,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:01:46,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:01:46,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:01:46,505 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:01:46,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/wcsstr.i [2021-12-21 22:01:46,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8058a0cfb/361909d574d44c26a8a1e109994b3bd1/FLAGadefcc4f7 [2021-12-21 22:01:46,941 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:01:46,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/wcsstr.i [2021-12-21 22:01:46,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8058a0cfb/361909d574d44c26a8a1e109994b3bd1/FLAGadefcc4f7 [2021-12-21 22:01:46,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8058a0cfb/361909d574d44c26a8a1e109994b3bd1 [2021-12-21 22:01:46,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:01:46,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:01:46,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:46,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:01:46,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:01:46,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:46" (1/1) ... [2021-12-21 22:01:46,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e75b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:46, skipping insertion in model container [2021-12-21 22:01:46,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:46" (1/1) ... [2021-12-21 22:01:46,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:01:47,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:01:47,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:47,261 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:01:47,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:47,314 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:01:47,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47 WrapperNode [2021-12-21 22:01:47,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:47,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:47,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:01:47,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:01:47,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,350 INFO L137 Inliner]: procedures = 113, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2021-12-21 22:01:47,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:47,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:01:47,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:01:47,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:01:47,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:01:47,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:01:47,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:01:47,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:01:47,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (1/1) ... [2021-12-21 22:01:47,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:47,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:47,421 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) [2021-12-21 22:01:47,442 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 [2021-12-21 22:01:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:01:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:01:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:01:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:01:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:01:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:01:47,512 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:01:47,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:01:47,613 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:01:47,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:01:47,617 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:01:47,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:47 BoogieIcfgContainer [2021-12-21 22:01:47,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:01:47,619 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:01:47,619 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:01:47,637 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:01:47,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:47,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:01:46" (1/3) ... [2021-12-21 22:01:47,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58d41a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:47, skipping insertion in model container [2021-12-21 22:01:47,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:47,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:47" (2/3) ... [2021-12-21 22:01:47,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58d41a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:47, skipping insertion in model container [2021-12-21 22:01:47,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:47,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:47" (3/3) ... [2021-12-21 22:01:47,641 INFO L388 chiAutomizerObserver]: Analyzing ICFG wcsstr.i [2021-12-21 22:01:47,725 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:01:47,725 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:01:47,725 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:01:47,725 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:01:47,725 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:01:47,725 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:01:47,726 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:01:47,726 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:01:47,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:01:47,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:01:47,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:47,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:47,755 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 22:01:47,756 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-21 22:01:47,756 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:01:47,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:01:47,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:01:47,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:47,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:47,759 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-21 22:01:47,759 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-21 22:01:47,764 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; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~ret14#1.base, main_#t~ret14#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 18#L516true assume !(main_~in_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + 4 * (main_~in_len~0#1 - 1), 4);main_~out_len~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 8#L520true assume !(main_~out_len~0#1 < 1);call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + 4 * (main_~out_len~0#1 - 1), 4);assume { :begin_inline_wcsstr } true;wcsstr_#in~haystack#1.base, wcsstr_#in~haystack#1.offset, wcsstr_#in~needle#1.base, wcsstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc wcsstr_#res#1.base, wcsstr_#res#1.offset;havoc wcsstr_#t~pre3#1, wcsstr_#t~mem6#1, wcsstr_#t~mem4#1, wcsstr_#t~mem5#1, wcsstr_#t~short7#1, wcsstr_#t~mem8#1, wcsstr_#t~pre2#1, wcsstr_#t~mem9#1, wcsstr_~haystack#1.base, wcsstr_~haystack#1.offset, wcsstr_~needle#1.base, wcsstr_~needle#1.offset, wcsstr_~i~0#1, wcsstr_~j~0#1;wcsstr_~haystack#1.base, wcsstr_~haystack#1.offset := wcsstr_#in~haystack#1.base, wcsstr_#in~haystack#1.offset;wcsstr_~needle#1.base, wcsstr_~needle#1.offset := wcsstr_#in~needle#1.base, wcsstr_#in~needle#1.offset;havoc wcsstr_~i~0#1;havoc wcsstr_~j~0#1;wcsstr_~i~0#1 := 0; 15#L508-4true [2021-12-21 22:01:47,765 INFO L793 eck$LassoCheckResult]: Loop: 15#L508-4true call wcsstr_#t~mem9#1 := read~int(wcsstr_~haystack#1.base, wcsstr_~haystack#1.offset + 4 * (if wcsstr_~i~0#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then wcsstr_~i~0#1 % 18446744073709551616 % 18446744073709551616 else wcsstr_~i~0#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 4); 12#L508-1true assume !!(0 != wcsstr_#t~mem9#1);havoc wcsstr_#t~mem9#1;wcsstr_~j~0#1 := 0; 6#L509-6true assume !true; 9#L509-7true call wcsstr_#t~mem8#1 := read~int(wcsstr_~needle#1.base, wcsstr_~needle#1.offset + 4 * (if wcsstr_~j~0#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then wcsstr_~j~0#1 % 18446744073709551616 % 18446744073709551616 else wcsstr_~j~0#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 4); 19#L510true assume !(0 == wcsstr_#t~mem8#1);havoc wcsstr_#t~mem8#1; 13#L508-3true wcsstr_#t~pre2#1 := 1 + wcsstr_~i~0#1;wcsstr_~i~0#1 := 1 + wcsstr_~i~0#1;havoc wcsstr_#t~pre2#1; 15#L508-4true [2021-12-21 22:01:47,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-21 22:01:47,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:47,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066079793] [2021-12-21 22:01:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:47,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:47,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:01:47,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066079793] [2021-12-21 22:01:47,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066079793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:01:47,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:01:47,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 22:01:47,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092370688] [2021-12-21 22:01:47,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:01:47,887 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-21 22:01:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1366197546, now seen corresponding path program 1 times [2021-12-21 22:01:47,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:47,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078139647] [2021-12-21 22:01:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:47,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:47,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:47,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:01:47,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078139647] [2021-12-21 22:01:47,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078139647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:01:47,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:01:47,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 22:01:47,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245705438] [2021-12-21 22:01:47,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:01:47,940 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:01:47,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:01:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 22:01:47,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 22:01:47,964 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:01:47,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:01:47,969 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2021-12-21 22:01:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 22:01:47,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2021-12-21 22:01:47,976 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:01:47,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2021-12-21 22:01:47,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:01:47,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:01:47,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:01:47,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:01:47,979 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:01:47,979 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:01:47,979 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:01:47,979 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:01:47,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:01:47,980 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:01:47,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:01:47,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:01:47 BoogieIcfgContainer [2021-12-21 22:01:47,984 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:01:47,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:01:47,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:01:47,985 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:01:47,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:47" (3/4) ... [2021-12-21 22:01:47,988 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:01:47,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:01:47,990 INFO L158 Benchmark]: Toolchain (without parser) took 1012.84ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 86.6MB in the beginning and 106.0MB in the end (delta: -19.4MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-12-21 22:01:47,990 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:47,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.66ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-12-21 22:01:47,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.36ms. Allocated memory is still 113.2MB. Free memory was 84.1MB in the beginning and 82.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:01:47,992 INFO L158 Benchmark]: Boogie Preprocessor took 30.13ms. Allocated memory is still 113.2MB. Free memory was 82.2MB in the beginning and 80.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:47,996 INFO L158 Benchmark]: RCFGBuilder took 237.10ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 69.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 22:01:47,997 INFO L158 Benchmark]: BuchiAutomizer took 365.40ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 69.3MB in the beginning and 106.7MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:47,997 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 136.3MB. Free memory was 106.7MB in the beginning and 106.0MB in the end (delta: 684.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:48,002 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 113.2MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.66ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.36ms. Allocated memory is still 113.2MB. Free memory was 84.1MB in the beginning and 82.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.13ms. Allocated memory is still 113.2MB. Free memory was 82.2MB in the beginning and 80.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 237.10ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 69.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 365.40ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 69.3MB in the beginning and 106.7MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 136.3MB. Free memory was 106.7MB in the beginning and 106.0MB in the end (delta: 684.5kB). 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 (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 22:01:48,035 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