./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Madrid.c --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-crafted/Madrid.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 21:54:39,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 21:54:39,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 21:54:39,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 21:54:39,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 21:54:39,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 21:54:39,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 21:54:39,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 21:54:39,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 21:54:39,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 21:54:39,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 21:54:39,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 21:54:39,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 21:54:39,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 21:54:39,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 21:54:39,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 21:54:39,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 21:54:39,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 21:54:39,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 21:54:39,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 21:54:39,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 21:54:39,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 21:54:39,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 21:54:39,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 21:54:39,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 21:54:39,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 21:54:39,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 21:54:39,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 21:54:39,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 21:54:39,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 21:54:39,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 21:54:39,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 21:54:39,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 21:54:39,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 21:54:39,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 21:54:39,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 21:54:39,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 21:54:39,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 21:54:39,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 21:54:39,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 21:54:39,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 21:54:39,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 21:54:39,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 21:54:39,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 21:54:39,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 21:54:39,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 21:54:39,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 21:54:39,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 21:54:39,302 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 21:54:39,302 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 21:54:39,303 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 21:54:39,303 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 21:54:39,303 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 21:54:39,304 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 21:54:39,304 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 21:54:39,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 21:54:39,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 21:54:39,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 21:54:39,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 21:54:39,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 21:54:39,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 21:54:39,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 21:54:39,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 21:54:39,305 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 21:54:39,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 21:54:39,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 21:54:39,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 21:54:39,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 21:54:39,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 21:54:39,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 21:54:39,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 21:54:39,307 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 21:54:39,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 [2021-12-21 21:54:39,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 21:54:39,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 21:54:39,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 21:54:39,547 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 21:54:39,548 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 21:54:39,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Madrid.c [2021-12-21 21:54:39,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb87a53b/42da2b0ee6b3490c896d20ec4a5b0d34/FLAG0ce6bbcde [2021-12-21 21:54:39,942 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 21:54:39,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Madrid.c [2021-12-21 21:54:39,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb87a53b/42da2b0ee6b3490c896d20ec4a5b0d34/FLAG0ce6bbcde [2021-12-21 21:54:39,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb87a53b/42da2b0ee6b3490c896d20ec4a5b0d34 [2021-12-21 21:54:39,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 21:54:39,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 21:54:39,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 21:54:39,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 21:54:39,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 21:54:39,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:54:39" (1/1) ... [2021-12-21 21:54:39,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2740bbd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:39, skipping insertion in model container [2021-12-21 21:54:39,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:54:39" (1/1) ... [2021-12-21 21:54:39,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 21:54:39,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 21:54:40,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:54:40,094 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 21:54:40,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:54:40,130 INFO L208 MainTranslator]: Completed translation [2021-12-21 21:54:40,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40 WrapperNode [2021-12-21 21:54:40,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 21:54:40,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 21:54:40,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 21:54:40,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 21:54:40,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,157 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2021-12-21 21:54:40,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 21:54:40,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 21:54:40,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 21:54:40,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 21:54:40,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 21:54:40,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 21:54:40,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 21:54:40,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 21:54:40,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (1/1) ... [2021-12-21 21:54:40,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:54:40,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:54:40,204 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 21:54:40,218 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 21:54:40,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 21:54:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 21:54:40,277 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 21:54:40,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 21:54:40,307 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 21:54:40,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 21:54:40,311 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 21:54:40,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:54:40 BoogieIcfgContainer [2021-12-21 21:54:40,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 21:54:40,313 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 21:54:40,313 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 21:54:40,315 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 21:54:40,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:54:40,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 09:54:39" (1/3) ... [2021-12-21 21:54:40,316 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f026b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:54:40, skipping insertion in model container [2021-12-21 21:54:40,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:54:40,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:54:40" (2/3) ... [2021-12-21 21:54:40,317 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f026b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:54:40, skipping insertion in model container [2021-12-21 21:54:40,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:54:40,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:54:40" (3/3) ... [2021-12-21 21:54:40,318 INFO L388 chiAutomizerObserver]: Analyzing ICFG Madrid.c [2021-12-21 21:54:40,351 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 21:54:40,352 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 21:54:40,352 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 21:54:40,352 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 21:54:40,352 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 21:54:40,352 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 21:54:40,353 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 21:54:40,353 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 21:54:40,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 21:54:40,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-21 21:54:40,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:54:40,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:54:40,380 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:54:40,380 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-21 21:54:40,380 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 21:54:40,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 21:54:40,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-21 21:54:40,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:54:40,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:54:40,381 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:54:40,382 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-21 21:54:40,386 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := 7; 7#L14-2true [2021-12-21 21:54:40,386 INFO L793 eck$LassoCheckResult]: Loop: 7#L14-2true assume !!(0 != ~unnamed0~0~true);main_~x~0#1 := 2; 7#L14-2true [2021-12-21 21:54:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:54:40,390 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-21 21:54:40,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:54:40,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157377670] [2021-12-21 21:54:40,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:54:40,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:54:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:54:40,444 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:54:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:54:40,458 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:54:40,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:54:40,460 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-12-21 21:54:40,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:54:40,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101047298] [2021-12-21 21:54:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:54:40,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:54:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:54:40,465 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:54:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:54:40,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:54:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:54:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-21 21:54:40,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:54:40,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854603866] [2021-12-21 21:54:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:54:40,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:54:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:54:40,477 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:54:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:54:40,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:54:40,526 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:54:40,526 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:54:40,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:54:40,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:54:40,527 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:54:40,527 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:54:40,527 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:54:40,527 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:54:40,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: Madrid.c_Iteration1_Lasso [2021-12-21 21:54:40,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:54:40,528 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:54:40,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:54:40,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:54:40,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:54:40,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:54:40,636 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:54:40,637 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:54:40,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:54:40,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:54:40,655 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) [2021-12-21 21:54:40,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:54:40,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:54:40,678 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 [2021-12-21 21:54:40,684 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:54:40,684 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:54:40,708 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 [2021-12-21 21:54:40,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:54:40,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:54:40,709 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) [2021-12-21 21:54:40,710 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 [2021-12-21 21:54:40,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:54:40,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:54:40,731 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:54:40,732 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:54:40,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-21 21:54:40,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:54:40,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:54:40,754 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) [2021-12-21 21:54:40,755 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 [2021-12-21 21:54:40,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:54:40,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:54:40,771 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:54:40,772 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:54:40,787 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 [2021-12-21 21:54:40,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:54:40,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:54:40,789 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) [2021-12-21 21:54:40,793 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 [2021-12-21 21:54:40,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:54:40,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:54:40,824 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 [2021-12-21 21:54:40,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:54:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:54:40,826 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) [2021-12-21 21:54:40,826 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 [2021-12-21 21:54:40,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:54:40,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:54:40,855 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:54:40,855 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-7}, {ULTIMATE.start_main_~x~0#1=7}, {ULTIMATE.start_main_~x~0#1=-5}] Lambdas: [0, 0, 0] Nus: [0, 0] [2021-12-21 21:54:40,871 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 [2021-12-21 21:54:40,878 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,879 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,879 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 09:54:40 BoogieIcfgContainer [2021-12-21 21:54:40,888 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 21:54:40,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 21:54:40,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 21:54:40,889 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 21:54:40,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:54:40" (3/4) ... [2021-12-21 21:54:40,890 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 21:54:40,912 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 21:54:40,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 21:54:40,914 INFO L158 Benchmark]: Toolchain (without parser) took 950.00ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 58.6MB in the end (delta: 28.6MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2021-12-21 21:54:40,914 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:54:40,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.36ms. Allocated memory is still 117.4MB. Free memory was 86.9MB in the beginning and 97.0MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 21:54:40,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.34ms. Allocated memory is still 117.4MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:54:40,915 INFO L158 Benchmark]: Boogie Preprocessor took 19.50ms. Allocated memory is still 117.4MB. Free memory was 95.7MB in the beginning and 94.9MB in the end (delta: 810.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:54:40,916 INFO L158 Benchmark]: RCFGBuilder took 133.00ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 87.3MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 21:54:40,920 INFO L158 Benchmark]: BuchiAutomizer took 575.62ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 60.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-21 21:54:40,921 INFO L158 Benchmark]: Witness Printer took 23.98ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 58.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:54:40,925 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 88.1MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.36ms. Allocated memory is still 117.4MB. Free memory was 86.9MB in the beginning and 97.0MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.34ms. Allocated memory is still 117.4MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.50ms. Allocated memory is still 117.4MB. Free memory was 95.7MB in the beginning and 94.9MB in the end (delta: 810.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 133.00ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 87.3MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 575.62ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 60.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 23.98ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 58.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: Lassos: inital6 mio100 ax333 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq233 hnf100 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2021-12-21 21:54:40,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,939 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,940 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,940 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,940 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,940 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,941 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-12-21 21:54:40,942 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-12-21 21:54:40,943 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {x=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0} State at position 1 is {x=7, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0} For i>1, the state at position i is {x=7 + sum_{k=0}^i -7*0^k + 7*0^k + -5*0^k, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint 3GEVs Lambdas: [0, 0, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = 7 Loop: [L14] COND TRUE \read(true) [L15] x = 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 21:54:40,968 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)