./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 f4b24e32 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-?-f4b24e3 [2022-07-14 14:46:18,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:46:18,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:46:18,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:46:18,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:46:18,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:46:18,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:46:18,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:46:18,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:46:18,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:46:18,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:46:18,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:46:18,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:46:18,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:46:18,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:46:18,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:46:18,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:46:18,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:46:18,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:46:18,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:46:18,252 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:46:18,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:46:18,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:46:18,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:46:18,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:46:18,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:46:18,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:46:18,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:46:18,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:46:18,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:46:18,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:46:18,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:46:18,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:46:18,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:46:18,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:46:18,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:46:18,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:46:18,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:46:18,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:46:18,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:46:18,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:46:18,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:46:18,268 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 14:46:18,288 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:46:18,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:46:18,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:46:18,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:46:18,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:46:18,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:46:18,291 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:46:18,292 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 14:46:18,292 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 14:46:18,293 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 14:46:18,293 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 14:46:18,293 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 14:46:18,293 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 14:46:18,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:46:18,294 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:46:18,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:46:18,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:46:18,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 14:46:18,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 14:46:18,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 14:46:18,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:46:18,296 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 14:46:18,296 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:46:18,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 14:46:18,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:46:18,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:46:18,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:46:18,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:46:18,298 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 14:46:18,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 [2022-07-14 14:46:18,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:46:18,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:46:18,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:46:18,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:46:18,533 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:46:18,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Madrid.c [2022-07-14 14:46:18,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3437948/53a6f71b8741466c806854e48ed22ba0/FLAG062a66355 [2022-07-14 14:46:18,950 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:46:18,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Madrid.c [2022-07-14 14:46:18,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3437948/53a6f71b8741466c806854e48ed22ba0/FLAG062a66355 [2022-07-14 14:46:19,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3437948/53a6f71b8741466c806854e48ed22ba0 [2022-07-14 14:46:19,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:46:19,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:46:19,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:46:19,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:46:19,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:46:19,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2993195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19, skipping insertion in model container [2022-07-14 14:46:19,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:46:19,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:46:19,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:46:19,543 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:46:19,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:46:19,561 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:46:19,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19 WrapperNode [2022-07-14 14:46:19,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:46:19,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:46:19,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:46:19,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:46:19,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,584 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-07-14 14:46:19,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:46:19,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:46:19,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:46:19,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:46:19,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:46:19,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:46:19,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:46:19,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:46:19,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (1/1) ... [2022-07-14 14:46:19,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:19,625 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) [2022-07-14 14:46:19,631 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 [2022-07-14 14:46:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:46:19,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:46:19,696 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:46:19,699 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:46:19,739 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:46:19,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:46:19,744 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:46:19,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:46:19 BoogieIcfgContainer [2022-07-14 14:46:19,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:46:19,746 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 14:46:19,747 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 14:46:19,749 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 14:46:19,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:46:19,750 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 02:46:19" (1/3) ... [2022-07-14 14:46:19,751 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@334777d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:46:19, skipping insertion in model container [2022-07-14 14:46:19,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:46:19,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:19" (2/3) ... [2022-07-14 14:46:19,752 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@334777d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:46:19, skipping insertion in model container [2022-07-14 14:46:19,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:46:19,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:46:19" (3/3) ... [2022-07-14 14:46:19,753 INFO L354 chiAutomizerObserver]: Analyzing ICFG Madrid.c [2022-07-14 14:46:19,795 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 14:46:19,795 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 14:46:19,795 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 14:46:19,795 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 14:46:19,796 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 14:46:19,796 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 14:46:19,796 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 14:46:19,796 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 14:46:19,799 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) [2022-07-14 14:46:19,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-14 14:46:19,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:46:19,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:46:19,825 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:46:19,825 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-14 14:46:19,826 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 14:46:19,826 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) [2022-07-14 14:46:19,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-14 14:46:19,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:46:19,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:46:19,827 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:46:19,827 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-14 14:46:19,832 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 5#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; 6#L14-2true [2022-07-14 14:46:19,832 INFO L754 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~true);main_~x~0#1 := 2; 6#L14-2true [2022-07-14 14:46:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:46:19,836 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 14:46:19,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:46:19,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112338838] [2022-07-14 14:46:19,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:46:19,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:46:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:19,897 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:46:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:19,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:46:19,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:46:19,915 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-07-14 14:46:19,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:46:19,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840829637] [2022-07-14 14:46:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:46:19,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:46:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:19,920 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:46:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:19,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:46:19,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:46:19,925 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-14 14:46:19,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:46:19,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263345582] [2022-07-14 14:46:19,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:46:19,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:46:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:19,930 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:46:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:19,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:46:19,988 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:46:19,989 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:46:19,989 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:46:19,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:46:19,990 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:46:19,990 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:19,990 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:46:19,990 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:46:19,990 INFO L133 ssoRankerPreferences]: Filename of dumped script: Madrid.c_Iteration1_Lasso [2022-07-14 14:46:19,991 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:46:19,991 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:46:20,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:20,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:20,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:20,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:20,081 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:46:20,082 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:46:20,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:20,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:20,103 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) [2022-07-14 14:46:20,146 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 [2022-07-14 14:46:20,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:20,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:20,174 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:20,174 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: [] [2022-07-14 14:46:20,196 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 [2022-07-14 14:46:20,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:20,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:20,198 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) [2022-07-14 14:46:20,198 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 [2022-07-14 14:46:20,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:20,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:20,221 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:20,221 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: [] [2022-07-14 14:46:20,237 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 [2022-07-14 14:46:20,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:20,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:20,239 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) [2022-07-14 14:46:20,240 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 [2022-07-14 14:46:20,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:20,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:20,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:20,252 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: [] [2022-07-14 14:46:20,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-07-14 14:46:20,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:20,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:20,271 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) [2022-07-14 14:46:20,309 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 [2022-07-14 14:46:20,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:20,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:20,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-14 14:46:20,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:20,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:20,341 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) [2022-07-14 14:46:20,342 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 [2022-07-14 14:46:20,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:46:20,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:20,371 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:20,372 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] [2022-07-14 14:46:20,391 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 [2022-07-14 14:46:20,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,400 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,401 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 02:46:20 BoogieIcfgContainer [2022-07-14 14:46:20,410 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 14:46:20,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:46:20,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:46:20,411 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:46:20,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:46:19" (3/4) ... [2022-07-14 14:46:20,413 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 14:46:20,435 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:46:20,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:46:20,437 INFO L158 Benchmark]: Toolchain (without parser) took 1056.05ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 59.5MB in the beginning and 84.1MB in the end (delta: -24.5MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2022-07-14 14:46:20,437 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:46:20,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.65ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 69.9MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 14:46:20,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.20ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 68.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:46:20,439 INFO L158 Benchmark]: Boogie Preprocessor took 15.11ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.8MB in the end (delta: 932.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:46:20,440 INFO L158 Benchmark]: RCFGBuilder took 145.04ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 60.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 14:46:20,440 INFO L158 Benchmark]: BuchiAutomizer took 664.07ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 60.7MB in the beginning and 85.7MB in the end (delta: -25.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-07-14 14:46:20,441 INFO L158 Benchmark]: Witness Printer took 24.22ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 84.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:46:20,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.65ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 69.9MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.20ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 68.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.11ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.8MB in the end (delta: 932.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 145.04ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 60.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 664.07ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 60.7MB in the beginning and 85.7MB in the end (delta: -25.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Witness Printer took 24.22ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 84.1MB in the end (delta: 1.6MB). 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 0.2s InitialAbstractionConstructionTime: 0.0s - 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. [2022-07-14 14:46:20,452 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,453 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,453 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,453 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,453 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,454 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,454 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,454 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:20,455 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, ~unnamed0~0~false=0, \result=0} State at position 1 is {x=7, ~unnamed0~0~true=1, ~unnamed0~0~false=0, \result=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, ~unnamed0~0~false=0 + sum_{k=0}^i 0, \result=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! [2022-07-14 14:46:20,479 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)