./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-memory-alloca/Urban-2013WST-Fig1-alloca.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 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 17:33:13,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 17:33:13,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 17:33:13,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 17:33:13,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 17:33:13,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 17:33:13,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 17:33:13,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 17:33:13,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 17:33:13,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 17:33:13,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 17:33:13,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 17:33:13,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 17:33:13,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 17:33:13,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 17:33:13,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 17:33:13,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 17:33:13,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 17:33:13,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 17:33:13,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 17:33:13,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 17:33:13,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 17:33:13,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 17:33:13,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 17:33:13,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 17:33:13,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 17:33:13,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 17:33:13,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 17:33:13,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 17:33:13,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 17:33:13,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 17:33:13,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 17:33:13,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 17:33:13,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 17:33:13,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 17:33:13,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 17:33:13,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 17:33:13,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 17:33:13,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 17:33:13,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 17:33:13,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 17:33:13,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-19 17:33:13,297 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 17:33:13,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 17:33:13,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 17:33:13,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 17:33:13,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 17:33:13,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 17:33:13,300 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 17:33:13,300 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 17:33:13,300 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 17:33:13,300 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 17:33:13,301 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 17:33:13,301 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 17:33:13,301 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 17:33:13,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 17:33:13,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 17:33:13,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 17:33:13,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 17:33:13,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 17:33:13,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 17:33:13,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 17:33:13,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 17:33:13,303 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 17:33:13,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 17:33:13,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 17:33:13,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 17:33:13,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 17:33:13,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 17:33:13,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 17:33:13,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 17:33:13,306 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 17:33:13,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd [2021-12-19 17:33:13,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 17:33:13,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 17:33:13,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 17:33:13,555 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 17:33:13,555 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 17:33:13,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2021-12-19 17:33:13,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5276d1edc/2420578b013f4411bd130f18dbbb2cbf/FLAG138982f19 [2021-12-19 17:33:14,129 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 17:33:14,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2021-12-19 17:33:14,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5276d1edc/2420578b013f4411bd130f18dbbb2cbf/FLAG138982f19 [2021-12-19 17:33:14,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5276d1edc/2420578b013f4411bd130f18dbbb2cbf [2021-12-19 17:33:14,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 17:33:14,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 17:33:14,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 17:33:14,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 17:33:14,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 17:33:14,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ffb58be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14, skipping insertion in model container [2021-12-19 17:33:14,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 17:33:14,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 17:33:14,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:33:14,885 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 17:33:14,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:33:14,929 INFO L208 MainTranslator]: Completed translation [2021-12-19 17:33:14,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14 WrapperNode [2021-12-19 17:33:14,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 17:33:14,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 17:33:14,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 17:33:14,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 17:33:14,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,965 INFO L137 Inliner]: procedures = 109, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-12-19 17:33:14,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 17:33:14,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 17:33:14,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 17:33:14,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 17:33:14,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:14,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 17:33:14,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 17:33:14,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 17:33:14,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 17:33:14,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (1/1) ... [2021-12-19 17:33:15,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:33:15,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:33:15,023 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) [2021-12-19 17:33:15,027 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 [2021-12-19 17:33:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 17:33:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 17:33:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-19 17:33:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 17:33:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 17:33:15,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 17:33:15,179 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 17:33:15,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 17:33:15,263 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 17:33:15,266 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 17:33:15,267 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 17:33:15,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:15 BoogieIcfgContainer [2021-12-19 17:33:15,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 17:33:15,269 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 17:33:15,269 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 17:33:15,271 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 17:33:15,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:33:15,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 05:33:14" (1/3) ... [2021-12-19 17:33:15,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22aee6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:33:15, skipping insertion in model container [2021-12-19 17:33:15,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:33:15,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:14" (2/3) ... [2021-12-19 17:33:15,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22aee6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:33:15, skipping insertion in model container [2021-12-19 17:33:15,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:33:15,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:15" (3/3) ... [2021-12-19 17:33:15,274 INFO L388 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2021-12-19 17:33:15,301 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 17:33:15,301 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 17:33:15,301 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 17:33:15,302 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 17:33:15,302 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 17:33:15,302 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 17:33:15,302 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 17:33:15,302 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 17:33:15,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:33:15,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:33:15,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:33:15,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:33:15,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 17:33:15,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:33:15,335 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 17:33:15,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:33:15,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:33:15,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:33:15,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:33:15,337 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 17:33:15,337 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:33:15,342 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; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~mem4#1, main_#t~mem5#1, main_#t~mem3#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset; 7#L549-2true [2021-12-19 17:33:15,342 INFO L793 eck$LassoCheckResult]: Loop: 7#L549-2true call main_#t~mem3#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 10#L548-1true assume !!(main_#t~mem3#1 <= 10);havoc main_#t~mem3#1;call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 8#L549true assume !(main_#t~mem4#1 > 6);havoc main_#t~mem4#1; 7#L549-2true [2021-12-19 17:33:15,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:33:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-19 17:33:15,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:33:15,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655640731] [2021-12-19 17:33:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:33:15,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:33:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:33:15,428 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:33:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:33:15,445 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:33:15,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:33:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2021-12-19 17:33:15,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:33:15,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369449722] [2021-12-19 17:33:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:33:15,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:33:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:33:15,464 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:33:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:33:15,469 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:33:15,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:33:15,471 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-12-19 17:33:15,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:33:15,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224303488] [2021-12-19 17:33:15,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:33:15,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:33:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:33:15,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:33:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:33:15,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:33:15,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 05:33:15 BoogieIcfgContainer [2021-12-19 17:33:15,666 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 17:33:15,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 17:33:15,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 17:33:15,667 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 17:33:15,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:15" (3/4) ... [2021-12-19 17:33:15,669 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 17:33:15,686 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 17:33:15,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 17:33:15,688 INFO L158 Benchmark]: Toolchain (without parser) took 1087.05ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 63.9MB in the beginning and 69.2MB in the end (delta: -5.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-12-19 17:33:15,688 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:33:15,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.65ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 63.6MB in the beginning and 106.9MB in the end (delta: -43.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:33:15,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.98ms. Allocated memory is still 136.3MB. Free memory was 106.9MB in the beginning and 105.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:33:15,689 INFO L158 Benchmark]: Boogie Preprocessor took 31.41ms. Allocated memory is still 136.3MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 868.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 17:33:15,690 INFO L158 Benchmark]: RCFGBuilder took 270.15ms. Allocated memory is still 136.3MB. Free memory was 104.8MB in the beginning and 95.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:33:15,690 INFO L158 Benchmark]: BuchiAutomizer took 397.23ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 70.4MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-19 17:33:15,690 INFO L158 Benchmark]: Witness Printer took 20.28ms. Allocated memory is still 136.3MB. Free memory was 70.4MB in the beginning and 69.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 17:33:15,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.65ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 63.6MB in the beginning and 106.9MB in the end (delta: -43.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.98ms. Allocated memory is still 136.3MB. Free memory was 106.9MB in the beginning and 105.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.41ms. Allocated memory is still 136.3MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 868.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.15ms. Allocated memory is still 136.3MB. Free memory was 104.8MB in the beginning and 95.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 397.23ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 70.4MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 20.28ms. Allocated memory is still 136.3MB. Free memory was 70.4MB in the beginning and 69.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=2, x=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@6e18feff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@58e1ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4046bb57=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@6673c0d4=0, NULL=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4046bb57=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 17:33:15,734 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)